Related topics: earth · nasa · flyby · asteroid

NASA solves mystery of Mars 'doughnut' rock

NASA scientists were finally able to explain the origin of the mysterious rock shaped like a jelly doughnut that appeared near the rover Opportunity in early January.

Image: Cloud bands over the Western Sahara Desert, Mauritania

This photograph of cloud bands over southern Mauritania was taken from the International Space Station with an oblique angle such that the cloud shadows are a prominent part of the view. Beneath the clouds, the plateau of ...

Clay-like minerals found on icy crust of moon Europa

(Phys.org) —A new analysis of data from NASA's Galileo mission has revealed clay-type minerals at the surface of Jupiter's icy moon Europa that appear to have been delivered by a spectacular collision with an asteroid or ...

Q&A: Comet ISON

(Phys.org) —Don Yeomans, a senior research scientist at JPL, keeps a watchful eye on near-Earth objects—asteroids, comets and other space rocks. Yeomans heads a group charged by NASA to watch for objects whose orbits ...

Meteorites' age is at center of Mars history debate

Planetary scientists dream of sending a geologist to Mars to study its rocks by hand. Until then, they have to settle for examining meteorites - chunks of the Red Planet that land on Earth after hurtling through space and ...

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