Where does the metal in meteors come from?

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We're moving the Brains On Universe Headquarters, and that means we have to stop putting out new episodes until we get settled. We know: not cool. But, our new home is going to be bigger and better and the absolute BEST. We can't wait until it's ready for you to visit. In the mea ...  Show more

Earth is in a cosmic shooting gallery. With so many asteroids zipping around, how can we find them all before they find us? 

Here on Earth, we are constantly being showered by particles from outer space called cosmic rays. What do we know about where these particles really come from?

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Asteroids, ho! Pioneering space miners dream of Psyche, the largest metal asteroid in the solar system. 

Daniel and Kelly analyze recent claims of the recovery of iron spheres from interstellar meteors.See omnystudio.com/listener for privacy information.