View Full Version : Watch Live Webcast: Cosmic Rays and Exploding Stars

2013-Feb-28, 06:40 PM
Scientists have know about cosmic rays for a century. But these high-energy subatomic particles, which stream through space at nearly the speed of light and crash into the Earth’s upper atmosphere, have been mostly a mystery. The primary reason: researchers have been unable to tell where they come from, or how they’re born. But new [...]

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