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Tracing the Big Picture of Mars' Atmosphere - PhysOrg

The European Space Agency will provide one instrument and the spacecraft. NASA will provide four instruments, including ExoMars Climate Sounder, which is coming from NASA's Jet Propulsion Laboratory, Pasadena,

WISE Snaps Picture Of The Unicorn's Stunning Rose - Redorbit.com

and the spacecraft was built by Ball Aerospace & Technologies Corp., Boulder, Colo. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of ...

Taking the 'search' out of search and rescue - PhysOrg

military’s Global Position System (GPS), a constellation of 24 spacecraft operating in mid ... environmental events around the world soared into space this morning after a picture-perfect launch from Vandenberg ...

Mystery of star's cloud of water solved - United Press International

But sensitive instruments on the Herschel spacecraft revealed the water is too hot to ... This is a good example of how better instruments can change our picture completely," Decin said.

Photo: Most Detailed Image of a Sunspot - Towleroad

The telescope that took the picture is know as the New Solar Telescope which uses adaptive ... which in March 2009 launched a one-ton spacecraft to search for planets like ours that just might harbor life.

Tuella’s Ashtar And The Coming Of The UFOs - UFODigest

... sending messages about the imminent destruction of Earth and the need for a literal physical evacuation of the planet to be carried out by the spacecraft ... to be able to see the picture that emerges when one ...

SpaceX’s Dragon Spacecraft Successfully Completes High Altitude Drop Test - Business Wire

... slowed the craft to a picture perfect landing. From there, recovery ships successfully returned the Dragon and parachutes to shore. While Dragon will initially be used to transport cargo, the spacecraft was ...

Incredible image of Moon orbiting Earth taken by Nasa probe 114 million miles away - Daily Mail

Earth can be seen at a distance of around 114million miles in an image taken by Nasa's Messenger spacecraft A beautiful, thought-provoking picture, this image was actually taken as part of Messenger's mission to ...

Part 4 - 'Initiative 300' - UFOs, astronauts, and NASA - Examiner

I'm telling you there are other spacecraft out there, lined up on the far side of the crater ... She has testified that she was shown a photo of a picture with a distinct UFO. Her colleague explained that it was his ...

Life at the SETI Institute: Cynthia Phillips -- Decipering the Cosmic Puzzle - Huffingtonpost.com

An expert in processing spacecraft images of the planets ... A picture is worth more than a thousand words. You don't have to be able to play an instrument to enjoy listening to music, and you don't have to be a ...

Voting Question: Do you believe in aliens?

I was watching the international news today, and it said that astronauts, over the course of ten years, have saw an alien spacecraft 4 times. They even showed a picture of the very human looking spacecraft, and they said it could be human made. Do you believe in it?. I do because people don't put scams on the news. Im just freaked out that they have been circling the moon for this long. You know the pyramids in Egypt, Who could build those, do you really beleive that egyptians built those. Do you think aliens dropped in to lend a hand? You might think im strange, but please no rude comments!!! more

Voting Question: Is this real? What's your opinion?

Okay, so I was reading about the movie "I Am Number Four". And I found out it's based on a book Barnes and Noble says it's by Pittacus Lore, apparently he "is Lorien's ruling Elder. He has been on Earth for the last twelve years, preparing for the war that will decide Earth's fate. His whereabouts are unknown". If you read the description of the book Lorien is another planet, and there trying to save our planet after there's was destroyed. I don't really believe that so I searched up the author and nothing really came up, like a picture. But this interview came up, and in the interview he doesn't show his identity but here's the like just in case you want to read it: http://shelf-life.ew.com/2010/07/16/an-out-there-interview-with-pittacus-lore-the-alien-author-of-i-am-number-four/ I was think, this can't be real. If there was a war then we would know about it right? We would see spacecrafts more often recently. So I went to wikipedia to find the author, it says it's written by Jobie Hughes and James Frey. But you can't always trust wikipedia. But why would they not show their names on the book? What do you think? more

Resolved Question: What signal should we send out to space?

In the not too distant future, man launched a robot into space and found 2 planets in a solar system that both supported Intelligent life. The robot spaceship has a good enough camera to take a decent photograph of both planets. The first one is seen inhabited by smart savages (does that even make sense?) basically humans but all of them wage constant war among other "races" but they still have technology like us. The second planet is inhabited by smart peaceful aliens who have technology but are peaceful. (Say they both create a treaty to not fight). So then we send another spacecraft with details of where earth is, and what we are like. Should we; A. Send pictures and audio showing we are a peaceful and advanced civilisation so they come in peace B. Send pictures and audio showing how poweful our military is (world unity not, maybe just NATO+Russia) so they are afraid of us C. Have a mixture of both so they will contact us but not blow us into oblivion D. Your views... Please explain your answers. -Mr Mad. more

Resolved Question: Do you believe in aliens? Legit video from the Chinese sighting on July 9th, 2010...?

http://www.youtube.com/watch?v=YnszlJC8iGs&feature=related Do you believe in aliens? This is a legitimate video, there are several videos of this same UFO along with various pictures from that night, look in the side bar for more. If you don't believe, what is your theory as to what this UFO is? The airport it was flying over grounded all of its outbound flights and redirected incoming flights to neighboring airports. I have been unable to find any explanation as to what else this could be, other than some sort of spacecraft. more

Resolved Question: Space/astrology questions?

1) What's the nearest (neighbor) solar system? How many planets in it? How far is is from here? 2) How fast is warp 9.7 (light yrs per hour)? And why you can't go faster than warp 10? 3) Are there any pictures of planets not in our solar system? 4) How many spacecrafts are currently outside our solar system and where are they? Do they send any pictures? Thanks more

Voting Question: Physics, Boring subject, Question at the end.?

Travel faster than the speed of sound?.......Can't be done, vehicle would shatter, Human body could not withstand G force........Top scientists of the day. Send pictures through the air to be retrieved and reassembled by receiver?....Impossible Send radio signals to the moon?........Will never be done, Radio waves cannot travel through vacuum Send spacecraft with people inside?..............Human body unable to withstand G forces. Exceed the speed of light?.................Impossible, Time would go backwards. Well I guess if the brains of the world say that it can't be done then I guess we had better give up? What do you think? more

Resolved Question: Can you answer this question about Propulsion systems?

This really isn't a question about what kind's of Propulsion systems we have but merely a question on the lines of a ?UFO's Propulsion system. Now I don't care how they would make wormholes and stuff like that though that would be cool to know but I'm just wondering... On our spacecraft we have the engine then the point of exit for the system to push it's self forward into space. Which means it can really only go one direction. Yeah it can slow down and change direction but for it to go straight it has mainly just one exhaust point... A "UFO is different it can go in like any direction it wants. And if you think about them you don't really see any exhaust points on a UFO if you look at pictures and skeptic Artist designs. So It got me thinking... Do you think that a UFO it's self is the Propulsion system? But just designed to be able to support life within and because the entire ship is the propulsion system with probably some crazy antimatter in the middle that like vents through tiny microscopic holes that lead to the outside or something... But yeah in order to achieve propulsion where we could change any direction with like a snap of a finger do you think we would have to make like a ship where the entire ship was a propulsion system? If any of this makes any sense I tried :/ more

Resolved Question: What was the nasa mission that took pictures of an asteroid or comet?

it was a nasa mission where this spacecraft took pictures of an asteroid or a comet (i forgot which one sorry). it took pictures before it crashed into the actual object. What was it calleD? more

Resolved Question: how does the Voyager spacecraft(s) send back images?

i did some research and looked into digital cameras... i found they didn't start making them until 1986 even though they had the technology since 75. digital camera's sucked until the early 2000's, and we had one in the 90's that used a floppy disk for the media, so i find it hard to believe that they use early crappy digital cameras. http://photography.lovetoknow.com/Who_Invented_the_Digital_Camera so if voyager was launched in 1977, how do they take / send pictures BACK to earth? are they seriously sending film cases in little rockets billions of miles through space? this has been bothering me a lot lately, I have been scouring google to find info on this. i have found a lot of info about the camera used, but little info on the format or data transfer. soooooooo.... does anyone know?torben, your a dumbass. use google.http://en.wikipedia.org/wiki/File:Vg1_p23254_hires.jpg http://en.wikipedia.org/wiki/File:Jupiter_from_Voyager_1.jpg um pictures from V1 more

Resolved Question: How do spacecrafts transmit images back to Earth?

How do spacecrafts like Voyager 1 and 2 transmit pictures of space back to Earth? and how do they receive flight instructions from such a long distance from earth? more

Resolved Question: Where do i find this picture on Wikimedia?

I once cam across of the DISCOVERY spacecraft, SR-71 Blackbird and F-22 raptor (not sure of that), parked side-by-side on a building. What is the search term? How do i find files easily next time on Wikimedia? more

Resolved Question: Had to share this... Isn't this picture of our planet so profound? It really puts things into perspective....?

This is a photograph of planet Earth taken in 1990 by Voyager 1 from a record distance, showing it against the vastness of space. By request of Carl Sagan, NASA commanded the Voyager 1 spacecraft, having completed its primary mission and now leaving the solar system, to turn its camera around and to take a photograph of Earth. Seen from 6 billion kilometres (3.7 billion miles), Earth appears as a tiny dot (the blueish-white speck approximately halfway down the brown band to the right)..... http://upload.wikimedia.org/wikipedia/commons/7/73/Pale_Blue_Dot.png In a commencement address delivered May 11, 1996, Sagan related his thoughts on the deeper meaning of the photograph..... Sagan points out that "all of human history has happened on that tiny pixel, which is our only home. Consider again that dot. That's here, that's home, that's us. On it everyone you love, everyone you know, everyone you ever heard of, every human being who ever was, lived out their lives. The aggregate of our joy and suffering, thousands of confident religions, ideologies, and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilization, every king and peasant, every young couple in love, every mother and father, hopeful child, inventor and explorer, every teacher of morals, every corrupt politician, every "superstar," every "supreme leader," every saint and sinner in the history of our species lived there – on a mote of dust suspended in a sunbeam. The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that, in glory and triumph, they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of this pixel on the scarcely distinguishable inhabitants of some other corner, how frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light. Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity, in all this vastness, there is no hint that help will come from elsewhere to save us from ourselves. The Earth is the only world known so far to harbor life. There is nowhere else, at least in the near future, to which our species could migrate. Visit, yes. Settle, not yet. Like it or not, for the moment the Earth is where we make our stand. It has been said that astronomy is a humbling and character-building experience. There is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly with one another, and to preserve and cherish the pale blue dot, the only home we've ever known." What do you think? more

Resolved Question: Please Help!!!!!!!!!!!!?

A spacecraft is going to Mars and has been lifted into low-Earth orbit. It is in the same orbit around the sun as the Earth. In order to reach Mars, it needs to do a Hohmann Transfer. This maneuver will enable the spacecraft to go from an orbit around the sun equal to the Earth's, to an orbit around the sun equal to Mars' In order to perform a Hohmann Transfer you must first determine the characteristics of the Hohmann Transfer ellipse. Question 1. Calculate the length of the semi-major axis, (a) pictured above. The semi-major axis is the distance to the center of the ellipse along the major axis. The center of the ellipse is halfway between the two foci (one of which is the sun). To determine the length of the semi-major axis first determine the length of the major axis and then divide it in half. The Hohmann Transfer major axis length is determined by adding the semi – major axis length of Earth’s orbit around the Sun to the semi-major axis length of Mars’ orbit around the Sun. Use http://nssdc.gsfc.nasa.gov/planetary/factsheet/marsfact.html to find the semi – major axis length for each planet. Your answer should be in km. Question 2. Calculate the focal length of the ellipse, (f) pictured above. To determine the focal length, subtract the Earth's distance to the sun from the semi-major axis. Your answer should be in km. Question 3. Calculate the length of the semi-minor axis, (b) pictured above, using the following mathematical equation for ellipses and your answers to question 1 and 2 above: f2 = a2 - b2 b = (a2-f2) 1/2 WHERE: b is the semi-minor axis in km a is the semi-major axis in km (from question 1) f is the focal length in km (from question 2) YOU CAN FIND THE DIAGRAMS ON THIS LINK http://aerospacescholars.jsc.nasa.gov/has/Modules/Earth-to-Mars/9/Mission.cfm more

Resolved Question: Need Help On this problem!?

Resolved Question: Can someone write a summary of this?

NASA has released the most detailed set of images ever taken of the distant dwarf planet Pluto. The images taken by NASA's Hubble Space Telescope show an icy and dark molasses-colored, mottled world that is undergoing seasonal changes in its surface color and brightness. Pluto has become significantly redder, while its illuminated northern hemisphere is getting brighter. These changes are most likely consequences of surface ices sublimating on the sunlit pole and then refreezing on the other pole as the dwarf planet heads into the next phase of its 248-year-long seasonal cycle. The dramatic change in color apparently took place in a two-year period, from 2000 to 2002. The Hubble images will remain our sharpest view of Pluto until NASA's New Horizons probe is within six months of its Pluto flyby. The Hubble pictures are proving invaluable for picking out the planet's most interesting-looking hemisphere for the New Horizons spacecraft to swoop over when it flies by Pluto in 2015. Though Pluto is arguably one of the public's favorite planetary objects, it is also the hardest of which to get a detailed portrait because the world is small and very far away. Hubble resolves surface variations a few hundred miles across, which are too coarse for understanding surface geology. But in terms of surface color and brightness Hubble reveals a complex-looking and variegated world with white, dark-orange and charcoal-black terrain. The overall color is believed to be a result of ultraviolet radiation from the distant sun breaking up methane that is present on Pluto's surface, leaving behind a dark and red carbon-rich residue. When Hubble pictures taken in 1994 are compared with a new set of images taken in 2002 to 2003, astronomers see evidence that the northern polar region has gotten brighter, while the southern hemisphere has gotten darker. These changes hint at very complex processes affecting the visible surface, and the new data will be used in continued research. The images are allowing planetary astronomers to better interpret more than three decades of Pluto observations from other telescopes, says principal investigator Marc Buie of the Southwest Research Institute in Boulder, Colo. "The Hubble observations are the key to tying together these other diverse constraints on Pluto and showing how it all makes sense by providing a context based on weather and seasonal changes, which opens other new lines of investigation." The Hubble pictures underscore that Pluto is not simply a ball of ice and rock but a dynamic world that undergoes dramatic atmospheric changes. These are driven by seasonal changes that are as much propelled by the planet's 248-year elliptical orbit as its axial tilt, unlike Earth where the tilt alone drives seasons. The seasons are very asymmetric because of Pluto's elliptical orbit. Spring transitions to polar summer quickly in the northern hemisphere because Pluto is moving faster along its orbit when it is closer to the sun. Ground-based observations, taken in 1988 and 2002, show that the mass of the atmosphere doubled over that time. This may be due to warming and sublimating nitrogen ice. The new Hubble images from 2002 to 2003 are giving astronomers essential clues about how the seasons on Pluto work and about the fate of its atmosphere. The images, taken by the Advanced Camera for Surveys, are invaluable to planning the details of the New Horizons flyby in 2015. New Horizons will pass by Pluto so quickly that only one hemisphere will be photographed in the highest possible detail. Particularly noticeable in the Hubble image is a bright spot that has been independently noted to be unusually rich in carbon monoxide frost. It is a prime target for New Horizons. "Everybody is puzzled by this feature," says Buie. New Horizons will get an excellent look at the boundary between this bright feature and a nearby region covered in pitch-black surface material. "The Hubble images will also help New Horizons scientists better calculate the exposure time for each Pluto snapshot, which is important for taking the most detailed pictures possible," says Buie. With no chance for re-exposures, accurate models for the surface of Pluto are essential in preventing pictures that are either under- or overexposed. The Hubble images are a few pixels wide. But through a technique called dithering, multiple, slightly offset pictures can be combined through computer-image processing to synthesize a higher-resolution view than could be seen in a single exposure. "This has taken four years and 20 computers operating continuously and simultaneously to accomplish," says Buie, who developed special algorithms to sharpen the Hubble data. The Hubble research results appear in the March 2010 issue of the Astronomical Journal. Buie's science team members are William Grundy of Lowell Observatory in Flagstaff, Ariz., and Eliot Young, Leslie Young, and Alan Stern of Southwest Research Institute in more

Resolved Question: Does Jupiter have a solid core?

I have found the following information but still I don't know what they say. Does Jupiter have a solid core or fluid core? In the 1940s and 1950s the German American astronomer Rupert Wildt used all the available data to derive a picture of Jupiter that is still generally accepted. He noted that both the low total density and the observed presence of hydrogen-rich compounds in the atmosphere were consistent with a bulk composition similar to that of the Sun and stars. This "cosmic composition" is dominated by the two simplest elements, hydrogen and helium, which together make up nearly 99 percent of all the material in the universe. Wildt hypothesized that the giant planets, because of their large size, had succeeded in retaining this primordial composition, whereas the hydrogen and helium had escaped from the smaller inner planets. He also used his knowledge of the properties of hydrogen and helium to calculate what the interior structure of Jupiter might be like, concluding that the planet is mostly liquid or gas. Wildt suggested that there probably was a core of solid material deep in the interior, but that much of Jupiter is fluid‹extremely viscous and compressed deep below the visible atmosphere, but still not solid. The atmosphere seen from above is just the thin, topmost layer of an ocean of gases thousands of kilometers thick. Pioneer 10, in 1973, and Pioneer 11, in 1974, made the first flybys of Jupiter; both spacecraft survived passage through the asteroid belt and through the Jovian trapped radiation. Among the findings from these spacecraft were the following: * Aside from its polar flattening, Jupiter is very symmetrical and has no gravitational anomalies; it behaves like a liquid planet. The temperature at the center of the planet may be 30,000° C. At the poles, a thick, aerosol-free, or "blue sky," atmosphere was found. more

Resolved Question: WE ARE HERE <arrow points to tiny speck in space> and ...?

Remember the Voyager spacecraft launched in 1977 to sail through the universe, with its Earthly messages for the extra-terrestrial beings that might someday find it? http://voyager.jpl.nasa.gov/spacecraft/goldenrec.html The messages we sent out in space described Earthlings in many different aspects, but we didn't tell them much about what our planet populace is like in terms of religion and spirituality.... If you were in charge of that project... what words - or music - or picture - or movie - (etc.) ... would you suggest, to convey to alien beings the spiritual side of us Earthlings? more

Resolved Question: SCIENCE HELP PLEASEE?

1. Although electromagnetic waves differ in their wavelengths, they all travel at the speed of light, which is ____. (1 point) 300,000 km/s 6,000 km/h 100 km/s 10,000 km/s 2. A rocket is a motor that can burn fuel without requiring ____. (1 point) water air electricity fire 3. The arrangement of ____ by wavelength is called the electromagnetic spectrum. (1 point) physical energy electromagnetic radiation mechanical energy electronic energy 4. The trouble experienced with the Hubble Space Telescope dealt with ____. (1 point) its launch into space its deployment into space a mistake made when the mirror was shaped its position in the space shuttle 5. The first artificial satellite, ____, was placed into orbit around Earth by the former Soviet Union in 1957. (1 point) Voyager I Sputnik I Galileo Viking I 6. A space probe is a spacecraft that ____. (1 point) completes only one orbit is built and launched by humans gathers information and sends it back to Earth both b and c 7. In addition to sending humans into space in the Mercury and Gemini programs, space probes were sent to the moon to ____. (1 point) take pictures of its surface determine the best landing sites on the moon test the possibility of landing a spacecraft on the moon all of the above 8. The first human to step onto the moon was ____. (1 point) Neil Armstrong Edwin Aldrin Michael Collins Yuri A. Gagarin more

Resolved Question: Why astronomers today are not able to say what the surface of Titan looks like?

a. No spacecraft flew by Saturn and its satellites so far. b. A spacecraft did fly by Saturn, but it never got close enough to Titan to send back any images of its surface. c. On the spacecraft that flew by Saturn and Titan, the cameras failed just as the images of Titan's surface where going to be taken d. Titan is completely covered by a reddish haze layer through which we could not take pictures of the surface. e. Titan has no surface. more

Resolved Question: Difficult Gravitational Energy Question?

Physics: Gravitational Field and Energy Question? 1. A spacecraft in the shape of a long cylinder has a length of 100 m, and its mass with occupants is 1940 kg. It has strayed too close to a black hole having a mass 93 times that of the Sun. The nose of the spacecraft points toward the black hole, and the distance between the nose and the center of the black hole is 10.0 km. Here is the picture: http://www.webassign.net/pse/p14-24.gif (a) What is the difference in the gravitational fields acting on the occupants in the nose of the ship and on those in the rear of the ship, farthest from the black hole? This difference in acceleration grows rapidly as the ship approaches the black hole. It puts the body of the ship under extreme tension and eventually tears it apart. ??? N/kg more

Resolved Question: General chemistry problem?

When the "Sojourner" spacecraft landed on Mars in 1997, the planet was approximately 7.8 multiplied by 107 km from Earth. How long did it take for the television picture signal to reach Earth from Mars? Key equations: Wavelength = speed of light/ nu energy per photon = planks constant X nu more

Resolved Question: Have there been 6 manned moon landings?

Did 12 people walk on the moon between 1969 and 1972? I homeschool my children...we are learning about the 50's, 60's, and 70's right now. Why have I never heard of these other moon landings? I have never read about them in any books nor seen any other pictures other than from the very first landing. My children have seen several documentaries in the past about how the moon landing is supposed to have been a hoax and now think that this part of our history is a joke. How can I convince them otherwise when I (nor my husband who is a history buff) have never even heard of these other landings? Did you know about these? Here's what I found: All the 6 manned moon landings: •Apollo 11 - landed 20 July, 1969 •Apollo 12 - landed 19 November, 1969 •Apollo 14 - landed 5 February, 1971 •Apollo 15 - landed 30 July, 1971 •Apollo 16 - landed 20 April, 1972 •Apollo 17 - landed 11 December, 1972 Who Walked on the Moon? In each case, a 3-man crew was sent to the moon: 2 astronauts actually landed on the moon, whereas No. 3 remained on the mother ship as it continued to orbit around the moon. All in all, 12 people have landed on the moon, as per the information below: Apollo 11 - Neil Armstrong (of "One small step for a man, one giant leap for mankind" fame); Buzz Aldrin Apollo 12 - Pete Conrad; Alan Bean Apollo 13 - is famous for not getting there and the heroic efforts needed to save the crew. Apollo 14 - Alan Shepard; Edgar Mitchell Apollo 15 - David Scott; James Irwin Apollo 16 - John W. Young; Charles Duke Apollo 17 - Eugene Cernan; Harrison Schmitt In the United States space program, SIX Apollo missions took astronauts to the lunar surface and back. Apollo 11 was the first, reaching the moon on July 20, 1969. Later successful missions were Apollo 12, 14, 15, 16, and 17, the last being over 35 years ago (December 1972). 12 men have walked on the moon. Luna spacecraft from the USSR had at least three robot missions that returned lunar samples (1970-1972).lol I'm almost 40 but only came to the US in '82...Any idea where I can find that NG documentary?Sexy Homer, I take offense to your comments. You can answer nicely and not be an azz! Just because I homeschool doesn't mean I'm religious or live on the freakin moon. I watch tv and I know a lot about history and science. I'm making an effort to learn more. You don't have to put me down!Nix, you're an azz too! As you can see I'm TRYING to learn more about it so I can correctly teach my children. What is wrong with you people??? more

Resolved Question: I'm confused, is the moon made of cheese or water ice?

http://www.msnbc.msn.com/id/33454442/ns/technology_and_science-picture_stories/displaymode/1247/?beginSlide=1 "Although the impact could not be seen from Earth, data collected by spacecraft with a better view of lunar surface should help scientists learn more about water ice trapped in the moon's soil."If you go to the article, you need to click on the "2" at the top more

Resolved Question: Why are all photographs of "UFO's" grainy and taken from far away ?

Has anyone EVER seen a good, detailed, close-up photograph of an "alien spacecraft"? Why not? Could it be that it's because if you're close enough to take a picture like that then you can see what the UFO really is, and don't automatically jump on the "oh my god it must be an alien ship" bandwagon? :oS more

Resolved Question: Probability Question: Continuous-Time Markov Models?

A spacecraft is sent to observe Jupiter. It is supposed to take pictures of Jupiter's moons and send them back to Earth. There are three critical systems involved: the camera, the batteries, and the transmission antenna. These three systems fail independently of each other. The mean lifetime of the battery system is 6 years, that of the camera is 12 years, and that of the antenna is 10 years. Assume all lifetimes are exponential random variables. The spacecraft is to reach Jupiter after 3 years to carry out this mission. What is the probability that the mission is successful? more

Resolved Question: Science Homework: Space.?

Ok, I'm pretty sure asking for help on yahoo answers doesn't count as cheating in homework, right? Especially after I've been searching for answers on net and in encyclopedias all day and haven't found anything helpful. Any help on the following questions would be nice and appreciated a lot! 1. What special design features would an unmanned spacecraft need to make its mission to take photos of the sun as useful as possible? 2. A spacecraft going to Mars has difficulties. The crew decide to return and circle the moon on their way home. Nasa control loses communication with them for a brief period at this time; why? 3. The crew on a spacecraft observing venus are in a position to pick up the pictures coming from the unmanned spacecraft heading towards the sun when it (the spacecraft taking photos of sun) crashes into the sun (*hahahaha*) Will the crew on the spacecraft orbiting venus continue to receive pictures for more or less than 8 minutes after the unmanned spacecraft more

Resolved Question: Astronomy question! Please help! Due tomorrow!?

The Voyager 1 spacecraft, pictured above, was launched in September 1977, and is now the most distant human made object. Voyager 1 is presently 111.3 astronomical units from the Sun, and is moving away from the Sun at a speed of 17,080 meters per second. If it were traveling directly toward Proxima Centauri, and maintained its present speed for the entire journey, how long would it take to reach Proxima Centauri? Thanks so much if you can help! more

Resolved Question: please correct this essay.?

Hello. This is Chan. I'm Korean. I tried to write this essay. I'm learning Enlish and I think I made lots of mistakes on the essay. Please correct it with your comment for me. Thank you so much. 40 years hence what will happen in the world and in Korea? Unification of South and North Korea. South Korea and North Korea will bring a country under a single authority. But the gap between the South and the the North will be too far in the fields of language, culture, industry, economics, social system and so on. Moreover there will be many foreigners in South Korea and they will already have constituted a community. Of course there will be some troubles among them sometimes. North Koreans normally will be poor and hard to be adapted to capitalism. So it can make them social weak people. South Koreans also will undergo the problem to share a pie of wealth. Success in launching the manned spacecraft to the moon based on 100% Korean technology. Korea will be one of the highest technological countries in the world. It will be showed in the trade and economics. Korea will sell lots of cars, ships, submarines, airplanes, helicopters, all kind of high technology articles and household electronic appliances like a television, laptop, pc, air-conditioner etc. The extension of the average life span. 40 years hence people will live longer than now. Medical technology will develop much higher. People will lengthen the average span of life till 120 years old. Grandparents also can work, exercise and enjoy their lives healthily. The aging society already began but the aged will live same as a member of a community. 40 years after I’m 67 years old. But I will be still healthy, strong, positive in my life. I may be traveling in the world or I may be working in Korea after finishing my world travel. I will have worked for an international body in foreign countries. After I retire my work, I will travel in the world. I will take lots of pictures and write my diary. I will share my story with my friends and readers. I will make my life more abundant. more

Resolved Question: Holy crap ! Russian papers say pyramids on Mars statues of humans and more Do you believe them?

Powerful telescopes from a spacecraft orbiting Mars have found new evidence to prove the existence of life on Mars. Telescopes took pictures of nine pyramids on the surface of Mars. The pyramids, as it seems, are not of the natural origin. The images include striking statues of human and animal faces, clearly visible from space, as well as large drawings featuring the profiles of primates and canines. Andrew Basiago, the president of Mars Anomaly Research Society, named the discovery ‘A New Cydonia.’ The scientist believes that there were three civilizations on Mars, one of which was hidden underneath the planet’s surface. http://english.pravda.ru/science/mysteries/18-09-2009/109369-mars-0http://www.entrynews.com/article/35222.htmlPravda is certainly an odd paper Serious hard hitting politics -- right next to the article about a three headed fish and a story about a dragon woman who cursed a town Make of it what you will more

Resolved Question: I dont get it? Is it just saying that the moon is hot and cold?

The shadowy craters near the south pole of the Moon may be the coldest places in the solar system, colder than even Pluto, NASA scientists reported Thursday as they unveiled some of the first findings from the Lunar Reconnaissance Orbiter spacecraft. “We’re looking at the Moon with new eyes,” said Richard Vondrak, the mission’s project scientist. The orbiter, launched in June, officially began its one-year mission to map the Moon’s surface this week. But during three months of turning on, testing and calibration of its seven instruments, it had already begun returning data. Notably, its camera captured pictures of the Apollo landing sites, including some of the tracks that the astronauts left on the surface. In the newly released data, thermal measurements showed that daytime temperatures over much of the surface reached 220 degrees Fahrenheit — hotter than boiling water — before plummeting to frigidness at night. But the bottoms of the craters, which lie in permanent darkness, never warm above minus 400. Those ultra cold temperatures have trapped and held deposits of ice for several billion years. The ice could prove a valuable resource to future explorers, not only as drinking water but also, when the water molecules are broken apart, hydrogen and oxygen. If it exists, the ice could also hold a detailed historical record of past comet impacts on the Moon, which would provide new hints of the early conditions in the solar system. A second instrument detected slow-moving neutrons, which indicate the presence of hydrogen in the Polar Regions. The hydrogen is most likely in the form of water, and that data support the findings of the Lunar Prospector spacecraft a decade ago. In a twist, the reconnaissance orbiter found hydrogen not only in some craters but also in some areas outside of the craters. Also, some of the craters did not appear to have hydrogen. That means the water — or some other hydrogen-containing molecule like methane — lies beneath the surface. “It would be very durable there,” Dr. Vondrak said. “What we don’t know is the abundance and how deep it is buried." Getting to the material at the bottom of the craters could be difficult. An instrument that maps the topography by bouncing a laser beam off the surface has found the sides of the craters to be steep and rough terrain. The primary mission of the Lunar Reconnaissance Orbiter, gathering data on the Moon from an altitude of 31 miles to prepare for the return on astronauts, will continue for a year. After that, it will continue to operate to gather information for scientists.thank you very much :)) more

Resolved Question: What do you think of my diction question it is about viking 1 and 2~for class?

On August 20, 1975 NASA launched Viking 1 into space in hopes of reaching the surface of Mars. This was one of a two identical spacecraft that had the purpose of successfully taking pictures, conducting biological experiments on the soil and atmosphere, and then returning that data back to Earth. The second, identical spacecraft, was shot off September 9, 1975.(1) The two orbited the planet looking for the perfect place to land. Vikings1 &2 were identical spacecrafts each consisting of an orbiter and a lander. The lander was to break away from the orbiter and land on the surface. It would then take pictures and conduct experiments on the soil.(2) It would then transmit the images and data back to the orbiter. The orbiter also had the job of transmitting all the information back to NASA. The firs images were transmitted 25 seconds after the shuttle landed. (2) The Viking shuttles, also conducted experiments to look for signs of life. Although The two landed successfully in different locations on the planet. Here they would stay transmitting images for seven years. They transmitted over 1400 images of the surface. They unsuccessful in finding traces of life on the red planet, but gave valuable information about the physical and atmospheric conditions on the surface.(3) Sources: 1. http://nssdc.gsfc.nasa.gov/planetary/viking.html 2. http://nssdc.gsfc.nasa.gov/nmc/masterCatalog.do?sc=1975-075C 3. http://pds.jpl.nasa.gov/planets/welcome/viking.htm more

Resolved Question: If our Hubble Telescope get a picture of Extra Terrestrial Space Craft?

If suddenly, our Hubble telescope getting a picture unidentified colossal alien astro-engineering far away from our earth, and they look like don't know us exist and just getting busy with their business, what would SETI first reaction, and how can the SETI try to contact them? How would it changed how our opinion to Extra Terrestrial live? Does an Alien contact benefit us? And if the picture from Hubble Telescope showing us that Alien spacecraft could obliterated an asteroid and triggering supernova, seeing how mighty and advanced they're, are we human feel fear and try not bother them, or do we still persistent trying to contact them to come to our solar system? And if they finally come close to Earth, but not even try to enter our atmosphere, the colossal space craft just orbiting our earth like the moon, after several day they just leave, and never been seen again, how do you think and react about their behavior? Do this event change our course in the future, would it make us realize how puny Humankind is, stop the conflict and unite try to join the society of Universe? more

Resolved Question: Why can't they insert the New Horizons spacecraft into Pluto's orbit?

Seriously, instead of wondering what to do with it after it passes into the Kuiper belt, why can't they just put it in orbit around Pluto so it can fully map out and examine Pluto and Charon. The current plan is to have it fly by, which up until 70 days prior to the fly by it won't be able to take higher res pictures than the Hubble, and it will eventually only be able to take pictures of one side of the planet and come sufficiently close to it for any real mapping like the MRO or LRO do for only a few hours. The spacecraft won't reach Pluto until 2015 and so we have to wait all this time to only get a glimpse of the planet... Put it in orbit so we can get videos, detailed maps of both Pluto and Charon, etc. It's dumb isn't it? They have enough fuel to put it in orbit, but they've decided not to do that and instead use the remaining fuel to chase after asteroids in the Kuiper belt nobody cares about, and they don't even know yet if it'll will be able to find any remotely interesting ones. Or why didn't they just give it enough fuel so it can be inserted into orbit for a few months and then have it escape into the Kuiper belt to chase after those asteroids. It takes nearly 10 years for anything we launch from Earth to reach Pluto, so maybe make it worth it? It's actually not NASA's fault, it's Congress's for not giving them enough money. more

Resolved Question: Would the beginning make you want to read on?

This is the opening section of my new novel. Would it make you want to read on? Contact me if you're interested, please; and thanks for your comments. It is common knowledge throughout all of the known parts of the Universe that have sentient life that the people of the little wet planet known as Earth are the only race that have never been formally introduced to members of any other race from any other planet. Why this should be is largely unknown, and no-one recently has ever really concerned themselves too much with finding out why. The whole ‘getting to know you’ thing hasn’t been an issue for a very long time, actually – considering that no-one is really allowed onto the planet without special permission anyway, and, well; people quite simply have their own important intergalactic stuff to be getting on with. And besides, one of the few things that is widely known about Earthlings is that they are regarded – albeit with a high degree of condescension - as being a bit thick. The feeling would seem to be that they really should have mastered the whole space travel gig by now, but their interest in it waned pretty quickly after bringing home a few rock samples from their moon and taking some pictures. If all they could do since then is mess about in space stations, put a ridiculously excessive number of satellites into orbit and send out the occasional unmanned probe, then why should anyone really bother with them? There are occasional unofficial visitors to the planet, of course; mostly the curious few who just want to tell their pals that they sneaked in, bought a Star Trek officer’s uniform and a Stargate SG1 box-set of dvds and got away without being detected; and idiot ‘daddy’s-boy’ pilots who carelessly veer off course and get pulled into the planet’s atmosphere because they are not properly qualified as pilots in the first place and really shouldn’t be flying such obscenely expensive spacecraft either. They are the types who lose control and crash-land late at night in some remote forest near the only farmhouse for miles around and who are quite literally too stupid to operate whatever brand of failsafe cloaking device that is installed on their craft “because it uses up too much reserve energy”. Subsequently, Little Johnny - the son of the couple who live in the nearby farmhouse – sees the light in the distance, goes through the woods to investigate and, just as the auto-repair on the craft finishes doing its thing, he spots it disappearing up into the sky, setting him up for a lifetime of undeserved dysfunction and unsuccessful therapy… …and there are people from Earth out there also. Abductions really do take place, just like some people suspect – it’s just something that no-one on Earth ever seems to be able to prove. People are taken for various reasons, most of which are quite unjustifiable and highly illegal; sometimes even for their own safety; but mostly for no obvious reason at all. This brings us conveniently to Dee Johnsson, a thirty-six year-old computer repair guy originally from Sweden who had, up until recently, been living somewhere in the northern part of Ireland; and who was now currently residing some eighty-six light years from there. But more about him shortly. Another thing that is common knowledge is that the concept of home prevails throughout every known species in the Universe that is capable of abstract thought. It may be cherished, despised, protected, abandoned or just plain taken for granted, but it does link everyone – like a kind of universal, though incredibly flexible, glue. When it enriches the experience of life it is beneficial beyond any expression in words; and when it is bad, it will torture without any mercy or remorse and will damage – sometimes – beyond repair. If it is something that is loved dearly and cannot be returned to, the loss of it will be felt like an amputation. So, just a short while ago, when this Dee Johnsson guy from somewhere in the northern part of Ireland gradually realised just how far he really was from home, the shock of it completely knocked him for what was probably a multiple of six, never mind just six. It all began as he was sitting in that wonderfully warm and cosy little upstairs room in his house; trousers crumpled around his ankles, getting increasingly red-faced about the last thing he would leave behind him on Earth; and continued as he suddenly materialised inside a strange clear plastic and metal container-type thing, with four odd-looking little green men looking up at him in what can only be described – if using the appropriate Earth term - as utter bewilderment. Indeed, few human beings have ever experienced such a shock. Even to be able to accept that such a thing really could happen would, arguably, require a specific level of thinking. Fortunately for Dee, all of the wonderfully mind-expanding drugs he had experimented with when he was a very naughty teenager in his native country had allowed him aThanks for commenting, people. To beauty blitz - you only read one sentence and completely missed the point of it. Oh, well... more

Resolved Question: Some people are so naive, i asked if a item was to pushed up from the moons surface then it would float away?

If the moons gravity is 1/6th of the earth then, why is items flicked up by the men's feet & the rover that none of the items float away. I also mentioned the mythbusters show that, showed them reproducing that type of gravity re: 1/6th & yet all the personnel are holding on to the plane & one of the mythbuster's team walks in a space suit, yet on the left of the screen on the show a item clearly moves around with no force applied to it, if it was secured to the floor, why does it move. also to produce 1/6th gravity you have to go through a certain g force's before you get 0 gravity or 1/6th of the earths gravity, I believe that we landed on the moon, but not on Apollo 11, I have visited NASA.gov site & the photos show men in space suit's that are from the space shuttle & not the suit's the had in 1968/69, even the flight's in the SR-71 are the same as moon landing's, & how much do they weigh, to keep the astronaut's on the surface of the moon, also the fist live pictures were from a camera on the moon's surface pointing to the module so someone had to put it there first, I am not talking about the camera outside the module, it only could look at a 360 deg view on top of the module, not on the moon's surface. Please explain that issue. Also it;s easy to tell stories after the fact, but look at all the stories the world have been told, yet in the future they are proved incorrect. re: Nicola Tesla for example. Also why cant we get blueprint's of Apollo 11 spacecraft & other items like the hubble etc. via the net even by direct request. more

Resolved Question: why do people hate nasa so much? when it gets a about HALF PERCENT of our country's budget?

NASA has done so much for America..sure it "wastes" a half percent of our total budget especially when it "wasted" funds I found this somewhere) Since 1976, about 1,400 documented NASA inventions have benefited U.S. industry, improved the quality of life and created jobs for Americans. The Apollo program has helped change the way of life in America, especially in health care. Here are some of the inventions contributed by the Apollo program. Kidney dialysis machines were developed as a result of a NASA developed chemical process that could remove toxic waste from used dialysis fluid. As a medical CAT scanner searches the human body for tumors or other abnormalities, the industrial version, or advanced computed tomography inspection system, finds imperfections in aerospace structures and components, such as castings, rocket motors and nozzles. A cardiovascular conditioner developed for astronauts in space led to the development of a physical therapy and athletic development machine used by football teams, sports clinics and medical rehabilitation centers. A hospital food service system employs a cook/chill concept for serving food. The system allows staff to prepare food well in advance, maintain heat, visual appeal and nutritional value while reducing operating costs. Athletic shoe design and manufacture also benefited from Apollo. Space suit technology is incorporated into a shoe's external shell. A stress free "blow molding" process adapted from NASA space suit design is also used in the shoe's manufacture. Freeze-dried food solved the problem of what to feed an astronaut on the long-duration Apollo missions. Insulation barriers made of aluminum foil laid over a core of propylene or mylar, which protected astronauts and their spacecraft's delicate instruments from radiation, is used to protect cars and trucks and dampen engine and exhaust noise. Water purification technology used on the Apollo spacecraft is now employed in several spinoff applications to kill bacteria, viruses and algae in community water supply systems and cooling towers. Filters mounted on faucets can reduce lead in water supplies. Process for bonding dry lubricant to space metals led to the development of surface enhancement coatings, which are used in applications from pizza making to laser manufacture. Each coating is designed to protect specific metal group or group of metals to solve problems encountered under operating conditions. Digital signal-processing techniques, originally developed to enhance pictures of the Moon for the Apollo Program, are an indispensable part of Computer-Aided Tomography (CAT) scan & Magnetic Resonance Imaging (MRI) technologies used today worldwide. Vacuum metallizing techniques led to an extensive line of commercial products, from insulated outer garments to packaging for foods & from reflective blankets to photographic reflectors. Cordless power tools & appliances are one of the most successful commercial spin-offs of space-based technology. Cool suits, which kept Apollo astronauts comfortable during moon walks, are today worn by race car drivers, hazardous area workers, & people with specific health problems. A hollow retroreflector, a mirror-like instrument that reflects light & other radiation back to the source, is used as a sensor to detect the presence of hazardous gases in oil development, chemical plants, waste storage sites & locations where gases could be released into the environment. TV Satellite Dish NASA developed ways to correct errors in the signals coming from the spacecraft. This technology is used to reduce noise (that is, messed up picture or sound) in TV signals coming from satellites. Medical Imaging NASA developed ways to process signals from spacecraft to produce clearer images. (See more on digital information and how spacecraft send images from space.) This technology also makes possible these photo-like images of our insides. Vision Screening System Uses techniques developed for processing space pictures to examine eyes of children and find out quickly if they have any vision problems. The child doesn't have to say a word! Ear Thermometer Instead of measuring temperature using a column of mercury (which expands as it heats up), this thermometer has a lens like a camera and detects infrared energy, which we feel as heat. The warmer something is (like your body), the more infrared energy it puts out. This technology was originally developed to detect the birth of stars. Fire Fighter Equipment Fire fighters wear suits made of fire resistant fabric developed for use in space suits. Smoke Detector First used in the Earth orbiting space station called Skylab (launched back in 1973) to help detect any toxic vapors. Now used in most homes and other buildings to warn people of fire. Sun Tiger Glasses From research done on materials to protect the eyes of welders working on spacecraft, proalso could NASA use some of the stimulus package money for fund it for a decade?not saying who hates or who loves nasa im saying why do people hate nasa...when nasa has done so much... My sister who works in the health department got an job due to the digital imaging..aka CAT I heard that CONGRESS wants to SAVE 100 MILLION ,by crashing the ISS into the oceanhalf percent ,so %.5 of americas budget is going to nasa when people say medical uses is a beter alternitive..NASA practical created CAT scaning which save lives. kidney dialysis machines due to nasa's efforts saves countless lives...yet more

Resolved Question: Space - why cant you see the stars?

In pictures of spacecraft in orbit / the international space station etc why is space just black and you cannot see the stars ??? more

Resolved Question: how much is this apollo 13 shell coin worth?

i found this coin that says apollo 13 Lovell.Haise.Swigert on the front with a picture of the spacecraft that seems show an explosion on the side of it and on the back it shows a picture of the craft landing with its 3 parachutes deployed and the earth and moon behind it that shows the figure 8 route that the astronauts took and on the very bottom of the coin it says SHELL. im guessing it could be worth alot but im not sure ...and im not sure what the SHELL means more

Resolved Question: Has canada ever launched a spacecraft?

ALSO: Whats a canadian made space craft or space shuttle that i could create a model of? (links and pictures would be greeeaaatly appreciated) Thank you. more

Resolved Question: If it were even possible for a vehicle to travel at light speed, what would prevent it from collisions?

A spacecraft traveling faster than the speed of light, such as the fictional ones in the "Star Trek" moving pictures and five television series,could see celestial bodies that light was already shining on,or bodies that were emitting light of their own, but, even if it had some kind of "headlight", it could not see celestial bodies in deep space,like rogue planets or asteroids too far away from any stars or planets to be illuminated in any way at all. And, even if it had some kind of "headlight", it would travel faster than the light it was shining from the headlight. Any type of radar wouldn't help, either, because those waves certainly don't travel at faster than light speed. So, how would a vessel traveling faster than light speed possibly be ensured to avoid colliding with anything? more

Resolved Question: What are your thoughts on UFO's?

I spend a majority of my time on the internet researching and debunking UFO's. Most of the videos and pictures I see can be explained but others cannot. If more people were willing to find logical explanations instead of thinking every video or picture was an alien spacecraft then I think that the majority of people might take this field more seriously. What do you think? Any theories that make sense to you?This is a hobby of mine not a job(although that would be awesome!) I have seen what could have been a UFO once and I could not identify it. I saw it during the day time and had somewhat of a clear view even though it was very high in the sky. It was red and cigar shaped and at first I thought it was a plane but it was rotating longways as it moved. One possible explanation would be a bunch of balloons attached to a plank and the wind was causing it to rotate but I can think of no reason why someone would put that up there. I didn't have my camera with me so I have no proof and that makes this just another story but I saw something in the sky. more

Resolved Question: please answer my 1990's questions?

1. What cult believed the Hale-Bopp comet was being followed by alien spacecraft? 2. What was the name of the space probe that landed on Mars in 1997 and sent amazing pictures back? 3. GM foods began being produced in the 90’s. What are they? 4. What gas guzzling cars entered the market replacing station wagons and mini-vans as the choices for family cars? 5. Who lived every young child’s dream by hitting a homerun to win the World Series? 6. What sporting event was cancelled for the first time in 90 years due to a workers strike? 7. What TV show became popular because it was about nothing at all? 8. What was the name of the movie that was actually episode 1 but came 22 years after episode 4? 9. What is “life like”? 10. What FPS game was introduced in 1993 that helped create the “gaming industry”? more

Resolved Question: Where can I find the picture of the orbital assembly of deep-space craft 450 feet above sea level by Bonestell?

I have a presentation that I have to give on Chesley Bonestell and this specific picture. While I have found plenty of information on him, I cannot find the picture anywhere. I have looked all over the internet, does anyone know what I can find this picture. My professor gave the title to me as, "Orbital assembly of deep-space craft, 450 feet above sea level." I saw the picture in a slide-show he did the first day of class, so I know it exists, I just can't find it anywhere. It is basically a view from space of a triangular-ish spacecraft being assembled, and you can see earth in the background. Please be specific, if you know a website or a book I can find this at, I would really appreciate it.you are right, my mistake, it is suppose to be 450 miles. I read that wrong, but I don't think that is the right picture. hmm..i do have access to my university's library, so i'll do a little digging, which I have, I found two of those books, but did not see this picture in there either. I am puzzled as well, and if I can't find it by tomorrow, I am going to talk with him about it. Thanks for all your help. :-) more

Resolved Question: 1.Although electromagnetic waves differ in their wavelengths they all travel at the speed of light which is__.?

300,000 km/s 6,000 km/h 100 km/s 10,000 km/s 2. A rocket is a motor that can burn fuel without requiring ____. water air electricity fire 3. The arrangement of ____ by wavelength is called the electromagnetic spectrum. physical energy electromagnetic radiation mechanical energy electronic energy 4. The trouble experienced with the Hubble Space Telescope dealt with ____. its launch into space its deployment into space a mistake made when the mirror was shaped its position in the space shuttle 5. The first artificial satellite, ____, was placed into orbit around Earth by the former Soviet Union in 1957. Voyager I Sputnik I Galileo Viking I 6. A space probe is a spacecraft that ____. completes only one orbit is built and launched by humans gathers information and sends it back to Earth both b and c 7. In addition to sending humans into space in the Mercury and Gemini programs, space probes were sent to the moon to ____. take pictures of its surface determine the best landing sites on the moon test the possibility of landing a spacecraft on the moon all of the above 8. The first human to step onto the moon was ____. Neil Armstrong Edwin Aldrin Michael Collins Yuri A. Gagarin more

Resolved Question: Is Saturn's moon, Hyperion, a "captured comet-core" ?

here's a picture: http://antwrp.gsfc.nasa.gov/apod/astropix.html it *looks* like a captured snowball, which some people think a comet more or less is, composition-wise .... and the thin, dark layer could be just the deposit over millenia, of solar wind. just a wild guess, but this picture sure looks like it supports the guess.(thinking back to the time when spacecraft approached the comet several years ago .. low density, chaotic rotation, etc .... thoughts?Slartibartfast, interesting point in re the orbital resonance. My guess was more or less guided by the crater-'forms' ... the <depth vs width> so totally unlike more solid-body moons ... like the impact-object went *in* with very little resistance .. like into a snow-bank and leaving sharp ridge-rims again, I'm just guessing ... but the: < HUGE mass for a comet > // <small mass for a moon> might indicate a primiordal comet which accumulated much mass in the Ooort cloud and *slowly* drifted into the gravitational well-influence of Saturn ... where it went into orbit and, at a large distance from the sun, did not undergo outgassing ... the *size* : What is the largest comet? There have been some large ones in history, such as Comet Hale-Bopp, which was 60 miles in diameter. http://home.comcast.net/~jimvb/2007/08/largest-comet-ever-discovered.html he sizes of cometary nuclei are mostly unknown because the measurement is a difficult one.Lisa, yup, me too ... the mystery of the universe inspires awe in me the more I learn about it {{{ LtP }}}Slar.... consider the mass(es) of Comet NEAT Comet Linear very, very big things (and 'composition' of Pluto?) more

Resolved Question: What do you think? Funny Paper I just wrote for my Advanced Comp class..?

*Disclosure: The writer can not be held responsible for the outcome of following these instructions because he has no knowledge of the subject and is completely full of crap. Although the concept of constructing a homemade spaceship may initially seem difficult and overwhelming, the process is really quite easy to follow. In the words of Sherlock Holmes, "Watson, it's really quite elementary." Before attempting to build the craft, you need to procure all of the necessary materials. The next step in the process, after you have everything you need, is to draw up the schematics so that you have a plan to follow. Once your plans are complete, you can begin to build the ship's interior frame. At this point, you must cover the fuselage with a protective skin. Now that the plane itself is finished, the final step is to install the rocket boosters. Pay close attention as I describe these steps more precisely, because only if they are followed properly will you have a spacecraft capable of flight. As any experienced rocket scientist will tell you, building a good spaceship begins with using quality materials. Unfortunately, however, these materials are not available at the same location. Despite this inconvenience, they can usually be obtained by making as few as three stops. Elmer's glue and Duct tape can be easily obtained, for minimal cost, in the craft department at your local Wal-Mart. These two ingredients are an essential part of the building process. They are used to bond the parts of the craft together. The next place you will have to go is the nearest dump. This is usually the cheapest location to procure the cardboard boxes and wood you will need. At least 1,000 refrigerator-sized cardboard boxes and several thousand 2x4s will be necessary to properly construct the fuselage . It is now finally time to find the last two parts you will need. Unless you happen to have 100 tons of high-grade rocket fuel and rocket boosters sitting around in your garage, you will need to use the Internet to find them. The best place to find these materials on-line is the Soviet Cold War Recyclables Auction House. Due to recent oversight by the Department of Homeland Security, I am unable to relay to you the web address for SCWRAH. Don't let this stop you though. A quick visit to Google should help you find what you need. Be careful when you're waiting for the delivery because the box is usually labeled as "Sneakers," and you don't want your mom to discover your rocket fuel sitting on the front porch. You'll also need a ruler and something to write with. Other things you may need: a utility knife, a hammer, and several hundred boxes of nails. Now that you have everything in one spot, you are ready to build your ship. In order to begin construction, you must first know what the heck you're going to build. If you don't know what a space shuttle looks like, you can find a picture on-line or at a nearby library. This step is the easiest one in the process. All that you need to do is draw a quick sketch of your ship using a ruler and some crayons. Be creative! Always remember one thing: This isn't rocket science! If you want, you can even draw a little cosmonaut in the corner for fun. When your sketch is finished, you are ready to start construction. Begin by laying out your 2x4s in the shape of the ship you drew. It's not important if it looks exactly like the sketch. It doesn't need to be perfect. When you have the boards laid out the way you want them, it's time to connect them using the Elmer's glue and Duct tape you bought earlier. Simply add a bit of the glue anywhere the 2x4s touch each other and wait for it to dry. When the glue has hardened, wrap the tape around it for added support. When this step is completed, you must cover the frame to protect it from thing damaging effects of space travel. To produce the external cover, you must use your utility knife to cut the cardboard into smaller pieces to fit onto the frame. If a section is too large for one piece of cardboard, simply use your Duct tape to tape several pieces together. When the sections are cut appropriately, the time has come to attach them to the frame. Simply use the hammer to pound some nails through the cardboard and into the wooden planks that make up the frame. If, when your shell is complete, the craft is wobbly or at all unstable, simply add extra nails. Like I always say: When in doubt, use more nails. Your fuselage is now complete, but a spaceship without rockets is like a car without a motor. Let's move on to the final step. It's time to add the boosters. You must be extra careful removing the rocket boosters from the packaging they arrived in, as they are usually already filled with fuel. If the Soviets sent you extra fuel, it is most likely in several hundred milk jugs. It is very important that before you begin attaching the boosters, you properly store the fuel tanks. If you have a large enough back yard, simply bury more

Resolved Question: How is Pioneer 10(Nasa) able to send back pictures of Jupiter in 1972? Thanks :)?

I mean in 1972, there's no digital camera, and the spacecraft never came back to Earth so how did it transit the information back? Read it at http://en.wikipedia.org/wiki/Pioneer_10 :) more

Resolved Question: What are the words to these definitions?

Definitions: the modern foundation of modern computers; 9 letters; 6th letter is c provides power for spacecraft; 6 letters; 3rd letter is c, fifth letter is e used to take pictures; 6 letters; fourth letter is l to make a map of; 5 letters not that; four letters many tiny drops in the air; 4 letters tall pole on a ship; 4 letters Please answer in order because after all this IS due on Monday so PLEASE HELP thank you more

Resolved Question: Where is the Mariner 10 now?

The mariner 10 (it is a spacecraft) shot into space a couple years ago to take pictures of mercury and it passed Venus and took a couple shots of Venus and mercury and then it started to orbit the sun but now i want to find out where the mariner 10 is now. i heard that it lost power? and its floating somewhere in space now? but I'm not sure so maybe someone here knows :) thanks more

Resolved Question: people who doubt theories?

maybe the theory gravity isn't 100% correct and inclusive...but exactly how do we get spacecraft to take pictures of planets that are millions of miles away without recognizing that the theory is more or less correct? do you know the calculations needed to get a spacecraft to a planet, they're incredibly complex and sensitive...and guess what theory they use...gravity!!! who cares if more science comes along to say it wasn't totally correct...it still works. and don't say NASA is making up the pictures because I have huge telescope and I can see the planets all by myself... it is a similar thing with the evolution theory and recent find.sorry I didn't ask a question... my question is...what do you think of that?geez...you people are relentless. i never said anything about knowing where gravity comes from. in fact, I don't know. it just is. What I can unknown, you call God, big deal. I am not one of the people that thinks evolution is a replacement for creationism. evolution doesn't explain where life came from. i don't know where life came from. i am just defending science and it's ways. more

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