just thinking if they can other stars and all that..then why not direct the Telescope at a planet like mars?
2007-11-21 10:38:27 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
They can and they do.
2007-11-21 10:49:05 · answer #1 · answered by laurahal42 6 · 0⤊ 0⤋
They have used the Hubble telescope to look at the outer planets, but the resolution is still too low to make out much. The Hubble telescope is actually smaller than a number of ground-based telescopes, so although it benefits from being outside the atmosphere it still has limits on resolution. Remember that stars are bright light sources on a black background, and galaxies are huge and faint. You get great hubble images of galaxies and stars by letting it expose the detectors for hours or even days, so that enough light is gathered. Even the most distant galaxies appear bigger than, for example, Pluto does from here, and a significant fraction of Mars's apparent angular size.
2007-11-21 18:54:07 · answer #2 · answered by Jason T 7 · 0⤊ 0⤋
Why not direct the telescope to China, North Korea, and Iran to find out what they are up to?
How many Hubbles do think there are?
Why do think the lenses were grinded to the "incorrect" focal lengh?
Why do think NASA engineers were not allowed to inspect the lens at the factory?
2007-11-21 21:40:25 · answer #3 · answered by autoglide 3 · 0⤊ 1⤋
They have and they do. But they don't need to very much now because there are probes in orbit and on the surface. Similar situation with the gas giants.
2007-11-21 18:50:04 · answer #4 · answered by Choose a bloody best answer. It's not hard. 7 · 0⤊ 0⤋
They've taken pictures of Mars with it..............http://www.space.com/scienceastronomy/mars_hubble_030827.html
2007-11-21 18:48:32 · answer #5 · answered by Baron_von_Party 6 · 0⤊ 0⤋