Clear+Vivid with Alan Alda podcast

David Jewitt and Jane Luu: Is Pluto All Alone Out There?

0:00
38:25
Rewind 15 seconds
Fast Forward 15 seconds

That was the question two determined astronomers set out to answer. A frustrating five-year search revealed that Pluto, long thought to be a small, lonely planet on the outer fringes of the solar system, is in fact part of a huge ring of debris left over from the solar system’s birth.

More episodes from "Clear+Vivid with Alan Alda"