1. The round, shallow depression in this image resulted from history's first grinding of a rock on Mars. The Rock Abrasion Tool on NASA's Spirit rover ground off the surface of a patch 45.5 millimeters (1.8 inches) in diameter on a rock called Adirondack during Spirit's 34th sol on Mars, Feb. 6, 2004.

10. Januar 2004 : Spirit entfaltet seine hinteren Räder.