Antimatter galaxies and dark matter have long haunted physicists' theories, but no instrument in orbit has had the power to confirm or deny their existence. Now a $1.5 billion cosmic ray detector scheduled for launch in 2010 could usher in a new era for discovering all that's weird and wonderful about the universe. Cosmic rays consist of high-energy particles that emerge from catastrophic events such as supernovas, and may also hold the clues to whether antimatter galaxies and dark matter truly exist
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Space station experiment to hunt antimatter galaxies
