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"Think of being in a train crash," says one survivor. Now, think of a train crash made of a mountainside. This is an avalanche — and surviving one will take expertise, equipment and a lot of luck.

With their population estimated at roughly 97 percent of historical levels, blue whales off the West Coast are being called a conservation success story.

New research analyzing eggshells sheds light on the 1,000-pound elephant birds that once roamed Madagascar.

Researchers say they've identified the oldest known Tyrannosaurus, shaking up the ongoing debate over how and when the dinosaurs arrived in North America.

Xinjiang has nearly 20,000 glaciers, half of China's total. They're all receding at a record pace — and will continue to melt, some scientists warn, even if global temperatures stop rising.

There's a possibility the Mars rover has found signs of carbon-containing molecules on the red planet. That discovery is exciting because of what it might say about the Martian environment where the rover is sitting at the bottom of Gale crater.

The four crewmembers spent a half-year on the International Space Station conducting dozens of experiments and science research. NASA's Crew-8 mission relieved them on the orbital outpost last week.

One sign of the poverty they're investigating — the recent (and surprising) reemergence of hookworm in Lowndes County, Ala.

NPR's Scott Simon talks to behavioral scientist Uri Simonsohn about how one of the scientists behind 2010 research on 'power poses' is distancing herself from that work.

Science writer Henry Fountain says the deadly quake that shook Alaska in 1964 was so loud some thought it was the beginning of World War III. His new book is The Great Quake.