Ballooning for Cosmic Rays

Astronomers have long thought that supernovas are the source of Galactic cosmic rays, but there's a troubling discrepancy between theory and measurements. An ongoing balloon flight over Antarctica could shed new light on the mystery.

FULL STORY and GRAPHICS at:

http://science.nasa.gov/headlines/y2001/ast15jan_1.htm?list112226

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Contact: Tony Phillips[email protected]

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