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Study: Mars may have had ancient oxygen-rich atmosphere
A British scientist says new findings suggest Mars had an oxygen-rich atmosphere more than a billion years before Earth developed its own. ... more
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Scientists use gravity, topographic data to find unmapped moon craters
Australian scientists say they've used ultra-high resolution mapping techniques to identify 280 craters on the moon that have never been mapped before. ... more
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Opportunity Recovers From Another Flash-Related Reset
On sols 3332 and 3333 (June and June 9, 2013) , Opportunity performed a 'touch 'n go' two-sol plan, using the robotic arm on the first sol to take Microscopic Imager (MI) images and position the Alp ... more
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NASA Announces Asteroid Grand Challenge
NASA announced Tuesday a Grand Challenge focused on finding all asteroid threats to human populations and knowing what to do about them.
The challenge, which was announced at an asteroid initi ... more
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