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B. Solving An Astronomical Puzzle

Narrator: This is Science Today. A century old puzzle relating to the composition of meteorites may have been solved by astronomer Frank Shu of the University of California, Berkeley. Shu says astronomers have long wondered how primitive meteorites, called chondrites were formed.

Shu: These very primitive meteorites are composed of two very different kinds of materials. One which never experienced very high temperatures and another which experienced temperatures a couple thousand degrees above absolute zero, high enough to melt rock. So this has been a big puzzle.

Narrator: While working on a theory on how stars and planets were formed, Shu found a connection and a possible solution to how these molten beads of rock ended up in a meteorite which was formed under cold conditions.

Shu: Our idea is that these small beads actually originated very close to the sun and were subsequently spewed out as part of a wind that we know is a general phenomenon in young stars as our Sun must have been in it's first million years of life.

Narrator: For Science Today, I'm Larissa Branin.