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Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

Looking Out Over Mars

Explanation: What would it be like to climb a hill and look out over Mars? That opportunity was afforded the Spirit rover earlier this month as it rolled to a high perch in the Columbia Hills . Peering out, the rolling robot spied the interior plains and distant rim of Gusev Crater , beyond an outcrop of rocks called Longhorn . Spirit continues to find evidence that many rock shapes have been altered by ancient water . Both Spirit and her sister robot Opportunity have completed their primary three-month mission but remain in good enough condition to continue to explore Mars .

Date August 23, 2004
Credit Credit: Mars Exploration Rover Mission , JPL , NASA
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.