ice sheet

Scientists have discovered a large aquifer, the size of Ireland, near the surface of the Greenland Ice Sheet. “This was a big surprise,” said Jason Box, a researcher for the Geological Survey of...

Martian North Pole

What can researchers learn about Mars from studying Earth's snow and ice?

We have been watching surface melting of the Greenland Ice Sheet (see Greenland Ice Sheet Today ) as one sign of climate change....

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