Is there a distance at which a satellite will orbit a body indefinitely? Is this distance a universal constant? [more inside]
posted by doublehappy on Oct 16, 2009 - 28 answers

Can anyone think of any suitable food, drink and games for a party/wake themed around the loss of Pluto's planetary status?
posted by einekleine on Aug 24, 2006 - 19 answers

What is the difference between Goofy and Pluto? [more inside]
posted by Botunda on Feb 1, 2006 - 19 answers

Unless it is followed by an even faster probe, will New Horizons become the most distant man-made object in space? If so, when? Are there any projects planned that would pass New Horizons before it passes Voyager 1?
posted by jepler on Jan 21, 2006 - 9 answers