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Hidden beneath Greenland's ice sheet is a massive canyon that's more than 460 miles long and up to 2,600 feet deep at points.
NASA is sending a solar-powered rover prototype designed for ice exploration to Greenland. Could this be preparation for a Europa mission?
Northeastern U.S. and Canadian coastal waters may rise 12 to 20 inches by 2100 in addition to projected sea level rise from other factors, NCAR says.
Shields in space, artificial volcanic eruptions, pumping carbon dioxide underground, ocean fertilization--all these "geoengineering" ideas are being discussed, says Harvard professor.
NASA makes its annual summer survey of the Greenland ice sheet.
Shortly after the French aircraft maker finishes high-elevation tests in Bolivia on one version of the energy-efficient jet, it begins cold-weather testing on Baffin Island.
Where does your country rank when it comes to malware infection rates? A cool-looking but scary interactive map from Kaspersky Lab has answers.
It's Tom Waits' world. We just happen to be living in it. An online map pinpoints his song lyric locations all across the globe.