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Icy surprises at Rosetta's comet

As Rosetta's comet approached its most active period last year, the spacecraft spotted carbon dioxide ice – never before seen on a comet – followed by the emergence of two unusually large patches of water ice.

dateNov 18, 2016 in Space Exploration
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Lazarus ice

Every school child knows that ice melts in the summer and freezes in the winter. But it turns out that the process isn't that simple in the Arctic, where one type of sea ice structure, called an ice ridge, can actually get ...

dateOct 10, 2016 in Earth Sciences
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