News tagged with asteroid belt

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Nonterrestrial artifacts hard to pin down

(PhysOrg.com) -- 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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Stardust discovered in far-off planetary systems

Searching for extra-solar planets -- which are planets outside of our solar system -- is very popular these days. About 700 planets are known at the moment, a number that is continuously rising due to refined ...

dateSep 29, 2011 in Astronomy
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Habitable zones

(PhysOrg.com) -- 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 ...

dateAug 22, 2011 in Astronomy
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