News tagged with asteroid belt

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Vesta likely cold and dark enough for ice

( -- Though generally thought to be quite dry, roughly half of the giant asteroid Vesta is expected to be so cold and to receive so little sunlight that water ice could have survived there for billions of years, ...

dateJan 25, 2012 in Space Exploration
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Dawn spacecraft spirals down to lowest orbit

( -- NASA's Dawn spacecraft successfully maneuvered into its closest orbit around the giant asteroid Vesta today, beginning a new phase of science observations. The spacecraft is now circling Vesta at an altitude ...

dateDec 13, 2011 in Space Exploration
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Nonterrestrial artifacts hard to pin down

( -- Two Pioneer probes left our solar system carrying plaques about humankind, and two Voyager probes will soon join them to gather information about places far out in our galaxy. We can and will send more autonomous ...

dateNov 07, 2011 in Space Exploration
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Habitable zones

( -- The "habitable zone" is the region around a star where a suitable planet could sustain the conditions necessary for life. Most astronomers take it to be the region where the balance between stellar radiation ...

dateAug 22, 2011 in Astronomy
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