Volcanoes, Swamps and the South Pole: NASA Scientists Take Research to Extremes

For some NASA scientists, the extreme environments they study aren't on a distant planet or moon — they're right here on Earth.

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Top 11 Deadliest Natural Disasters in History

Earthquakes, cyclones, floods... The deadliest natural disasters have a combined estimated death toll of nearly 10 million people.

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How Expensive It Is to Have Kids? These 5 Charts Reveal the Hefty Price Tag

Today, roughly one in five women in the U.S. doesn't have children. Thanks in part to this decline in birthrate, for the first time in U.S. history, there may soon be more elderly people than children.

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1,500-Year-Old Coin Stash Leaves Archaeologists with Mystery

The coin stash was found in a collapsed building in the ancient city of Corinth.

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Artificial Chameleon Skin Is Weird and Cool

It doesn't swell when dipped in "bodily fluids." Hmm.

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Chinese Space Station Comes Tumbling to Earth Over Pacific Ocean

After weeks of uncertainty about when and where it would crash, the Chinese space station Tiangong-1 has tumbled to Earth.

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Why Is It So Hard to Predict the Crash of China's Space Station?

Here's why nobody can say for sure exactly when and where Tiangong-1 will drop to Earth's surface.

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