Τετάρτη, 30 Μαρτίου 2011

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.

2011 March 27
See Explanation.  Clicking on the picture will download the highest resolution version available.

Valles Marineris: The Grand Canyon of Mars
Credit: Viking Project, USGS, NASA

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