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Scientists find a martian igneous rock that is surprisingly Earth-like
During the nearly 14 months that it has spent on the red planet, Curiosity, the Mars Science Laboratory (MSL) rover, has scooped soil, drilled rocks, and analyzed samples by exposing them to laser b ... more
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Dawn Reality-Checks Telescope Studies of Asteroids
Tantalized by images from NASA's Hubble Space Telescope and ground-based data, scientists thought the giant asteroid Vesta deserved a closer look. They got a chance to do that in 2011 and 2012, when ... more
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Researchers describe unusual Mars rock
The first rock that scientists analyzed on Mars with a pair of chemical instruments aboard the Curiosity rover turned out to be a doozy - a pyramid-shaped volcanic rock called a "mugearite" that is ... more
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Dawn Marks Six Years In Space
On the sixth anniversary of leaving Earth to embark on a daring deep-space expedition, Dawn is very, very far from its erstwhile planetary residence. Now humankind's only permanent resident of the m ... more
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