| Subject: | Re: Landers on moon invisible? |
|---|---|
| From: | "CWatters" <colin.watters@xxxxxxxxxxxxxxxxxxxxxxxxx> |
| Date: | Sun, 31 Dec 2006 20:32:54 -0000 |
| Newsgroups: | sci.physics |
Coming soon... http://science.nasa.gov/headlines/y2005/11jul_lroc.htm why haven't we photographed them? There are six landing sites scattered across the Moon. They always face Earth, always in plain view. Surely the Hubble Space Telescope could photograph the rovers and other things astronauts left behind. Right? Wrong. Not even Hubble can do it. The Moon is 384,400 km away. At that distance, the smallest things Hubble can distinguish are about 60 meters wide. The biggest piece of left-behind Apollo equipment is only 9 meters across and thus smaller than a single pixel in a Hubble image. Better pictures are coming. In 2008 NASA's Lunar Reconnaissance Orbiter will carry a powerful modern camera into low orbit over the Moon's surface. Its primary mission is not to photograph old Apollo landing sites, but it will photograph them, many times, providing the first recognizable images of Apollo relics since 1972. |
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