Beth Geiger | Science News for Students

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Beth Geiger

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ANSMET meteorite collection
Each year, groups of scientists with the Antarctic Search for Meteorites (ANSMET) project spend weeks camping on ice fields in Antarctica. Using snowmobiles, they travel about looking to find and bring back meteorites. Here's a group that has just met with success.

NASA

 Earth
Hot on the trail of Antarctic meteorites
Each year, scientists scour the frozen continent for space rocks
Mount Erebus
Mount Erebus, the world’s southernmost active volcano, rises 3,794 meters (12,477 feet) above the ice in Antarctica. It’s in the same region as the newly discovered buried volcanoes.
Steve Rupp/National Science Foundation
 Earth
Giant volcanoes lurk beneath Antarctic ice
The expanse of buried volcanoes raises questions about the future of the ice sheet
Arctic water

The Arctic Ocean didn’t become salty until a stretch of land that ran from Greenland (pictured here) to Scotland sank far enough beneath the sea, a new study finds.

SteveAllenPhoto/iStockphoto

 Oceans
How the Arctic Ocean became salty
A land bridge had to sink far enough below a top-of-the-world lake to let Atlantic saltwater overwhelm it
methane plumes
 Earth
Ancient Arctic ‘gas’ melt triggered enormous seafloor explosions
Telltale monster craters reveal a violent side to melting ice — one that could repeat soon
man looking at clouds
 Weather & Climate
Cool Jobs: Head in the clouds
Three scientists see very different things when they look at the sky
trash garbage
 Earth
Meet our trashy ‘technosphere’
People appear to have deposited a layer of waste across Earth’s surface that weighs 100,000 times more than all of humanity