Release 591 of 1,059
Mars: Closest Encounter
Release date: Aug 27, 2003 6:00 AM (EDT)

These two images, taken 11 hours apart with NASA's Hubble Space Telescope, reveal two nearly opposite sides of Mars. Hubble snapped these photos as the red planet was making its closest approach to Earth in almost 60,000 years. Mars completed nearly one half a rotation between the two observations.