2007-09-15 07:33:45 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
how far in space.........
I'd say right now a man made object named Phoenix is headed towards mars. if one was in space they could see that.
also we have SOHO, Stereo, the Hubble telescope, and numerous satellites. not too mention the ISS
so technically your question is already considered a fallacy
2007-09-15 07:51:40 · answer #1 · answered by Mercury 2010 7 · 0⤊ 1⤋
This business of human artifacts being seen from space is getting out of hand.
It depends on what you mean by "space". Low orbit is not particularly high (as low as 120 miles, up to 1200), and many things can be seen, but mainly because of the patterns they create, rather than the objects themselves. I doubt you could pick the Great Wall itself, because it is relatively narrow and seen from above. Also, contrary to popular belief, there's not much left of it that can be seen easily anyway. Much of it is low mounds of rubble. From some altitudes, you may be able to see where sections of it are by the patterns.
Look on Google Earth. Find a large city, then increase the eye elevation (go upwards). Look at how high you can be to still see the straight lines caused by humans, even when you can't see the actual buildings. Airports are particularly visible.
2007-09-15 18:46:01 · answer #2 · answered by Choose a bloody best answer. It's not hard. 7 · 0⤊ 0⤋
keep in mind that google earth pictures are mosiac and enhanced for our viewing. The great wall is quite "long" enough for the eye to resolve it, but it is only wide enough to turn a full chariot around in most places so it is not "thick enough" to resolve with the eye. A camera from google earth may be able to though. Should be able to maybe make out the "shape outline" of where it is but no see it the wall itself.
Since at night major cities can be made out by the lights yes the one in Vegas is probably visable. Dont know about daytime, as I have never been there.
Again you have the question about low or high orbit. Track down the video of the shuttle doing her backflip and see if you see anything on earth below her.
2007-09-15 22:44:13 · answer #3 · answered by orion_1812@yahoo.com 6 · 0⤊ 0⤋
There are no artificial objects visible to the naked eye from space during the daytime. During the night, it is possible to see lights from cities with the naked eye from space. The Great Wall of China is sometimes said to be the only artificial object visible from space, but that is not technically correct; it is not the wall itself which is visible, but only the change in terrain type from one side to the other (caused by plants of different types and colors growing on each side).
2007-09-15 14:43:05 · answer #4 · answered by Anonymous · 2⤊ 2⤋
Sally Ride wrote an article about this and she said you can see many things from space. She said if the lighting is perfect you can see the eddies in the ocean. You can see the wakes of a large ship and the contrails of an airplane. You can also see runways and many other things. If I could, I would put the whole article on here, but it's not on the Internet.
2007-09-15 22:55:51 · answer #5 · answered by ftrastronaut 3 · 0⤊ 0⤋
Several. The Great Wall of China, the lights of major cities, the radar collector in Puerto Rico.
2007-09-15 18:59:18 · answer #6 · answered by Anonymous · 1⤊ 0⤋
The Great Wall of China can be seen from space, because it covers such a mass of land and the light on top of the LUXAR casino in Las Vegas can been seen from space too.
2007-09-15 14:43:24 · answer #7 · answered by Erinn M 3 · 1⤊ 2⤋
Pretty certain it's the Great Wall of China
2007-09-15 14:43:22 · answer #8 · answered by Choqs 6 · 1⤊ 1⤋
The wall of China , but u can also see the pattern of cities.
2007-09-15 17:25:12 · answer #9 · answered by JOHNNIE B 7 · 1⤊ 1⤋
Great Wall of China?
2007-09-15 14:37:18 · answer #10 · answered by biscuit 3 · 3⤊ 4⤋