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Mars orbiter catches twister in action

(PhysOrg.com) -- An afternoon whirlwind on Mars lofts a twisting column of dust more than half a mile (800 meters) high in an image from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's ...

dateMar 08, 2012 in Space Exploration
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Evolving planets get a bumpy ride

The formation of planets occurs under constant bombardment from particles ranging from a few nanometres to tens of kilometres in size, according to recent analyses of asteroid samples by scientists at Okayama ...

dateMar 06, 2012 in Space Exploration
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The Earth's new water budget

Investigating the history of water on Earth is critical to understanding the planet's climate. One central question is whether Earth has always had the same amount of water on and surrounding it, the same ...

dateMar 05, 2012 in Earth Sciences
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