On Today's Podcast

Why Astronomers Are Excited About Comet 3I/ATLAS’ Close Approach

Comet 3I/Atlas is just the third known object to visit us from outside our solar system. So yes... we'll be talking about aliens.

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December 19, 2025

A newly identified amoeba can survive at the temperature of a medium-well steak. Plus, a distant lava planet shows signs of an atmosphere. And, this Christmas Bird Count, we salute the fabulous, underappreciated, common species. Here’s to you, house sparrow.

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Video

Desktop Diaries: Jill Tarter

As the SETI (Search for Extraterrestrial Intelligence) Institute’s first employee, Tarter has accumulated E.T.-themed office ornaments for the last 30 years—including a bottle of wine to be opened “only upon detection of Extraterrestrial signal.”

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