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Rosetta at Comet
2014-06-10 16:21:28

Three NASA science instruments aboard the European Space Agency's Rosetta spacecraft, which is set to become the first to orbit a comet and land a probe on its nucleus, are beginning observations and sending science data back to Earth.


Word of the Day
sipe
  • a slit in a tire to drain away surface water and improve traction.
The word 'sipe' comes from Old English and is related to 'seep'.
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