... An important confirmation that methane exists in the atmosphere of Mars occurred last week, bolstering previous controversial claims made as early as 2003. Saturns Hyperion: A Moon with Odd Craters . ... To help find out, the robot Cassini spacecraft now orbiting Saturn swooped past the sponge-textured moon in late 2005 and took an image of unprecedented detail. ... This past weekend, the largest full Moon of 2009 could be seen from almost any clear location on planet Earth at night. ...