Science
Amazing photos in Mars Reconnaissance Orbiter celebration | Space – haveeruonline
View larger. | Sand dunes and ripples in Proctor Crater on Mars, as seen by the Mars Reconnaissance Orbiter on February 9, 2009. Image via NASA/

View larger. | Sand dunes and ripples in Proctor Crater on Mars, as seen by the Mars Reconnaissance Orbiter on February 9, 2009. Image via NASA/ JPL-Caltech/ Univ. of Arizona.
Mars is a dry desert world, covered in reddish sand. In our lifetimes, spacecraft have revealed its amazing scenery and sweeping landscapes. Its a world at once reminiscent of Earth, yet alien and strange. This week, to celebrate the launch of the Mars Reconnaissance Orbiter 15 years ago, NASA has shared some of the orbit…
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