Search Results for: antarctica
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1,394 results
1,394 results for: antarctica
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EarthPresto, Change-o!
Compared with the snail's-pace processes that normally shape Earth's surface, the impacts of extraterrestrial objects change our planet's geology in a flash.
By Sid Perkins -
EarthShifting Sands
Sand dunes can provide scientists with clues about ancient patterns of wind and precipitation.
By Sid Perkins -
EarthOnce Upon a Lake
As Earth warmed at the end of the last ice age, the immense volumes of fresh water that occasionally and catastrophically spilled from Lake Agassiz—the long-defunct lake that formed as the ice sheet smothering Canada melted—may have caused global climate change and sudden rises in sea level.
By Sid Perkins -
Science News of the Year 2002
A review of important scientific achievements reported in Science News during the year 2002.
By Science News