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NASA: Is life-giving water flowing on Mars?

An image combining orbital imagery with 3-D modeling shows flows that appear in spring and summer on a slope inside Mars' Newton crater. Image credit: NASA/JPL-Caltech/Univ. of Arizona

August 4th, 2011 | Permalink

Mars rover to land inside huge crater

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July 24th, 2011 | Permalink

Greenland, Antarctica ice sheets melting fast

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March 10th, 2011 | Permalink

Mars, Europa top survey of most promising space missions

The largest canyon in the Solar System cuts a wide swath across the face of Mars. Named Valles Marineris, the grand valley extends over 3,000 kilometers long, spans as much as 600 kilometers across, and delves as much as 8 kilometers deep. By comparison, the Earth's Grand Canyon in Arizona, USA is 800 kilometers long, 30 kilometers across, and 1.8 kilometers deep. The origin of the Valles Marineris remains unknown, although a leading hypothesis holds that it started as a crack billions of years ago as the planet cooled. Recently, several geologic processes have been identified in the canyon. The above mosaic was created from over 100 images of Mars taken by Viking Orbiters in the 1970s.

March 9th, 2011 | Permalink

Changing face of Mars

Three images of the same location taken at different times on Mars show seasonal activity causing sand avalanches and ripple changes on a Martian dune. Image credit: NASA/JPL-Caltech/University of Arizona

February 3rd, 2011 | Permalink

Jupiter’s moon Europa

Europa, a moon of Jupiter, appears as a thick crescent in this enhanced-color image from NASA's Galileo spacecraft, which was orbited Jupiter from 1995 to 2003. Image: NASA/JPL/University of Arizona

October 4th, 2010 | Permalink

Mars landing site for Rovers?

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September 4th, 2010 | Permalink

Mars canyon

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September 4th, 2010 | Permalink

Mars: Near the north pole

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September 4th, 2010 | Permalink

Mars’ composition

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September 4th, 2010 | Permalink

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