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Shimmer Me This

Back in September, a fascinating paper appeared on the arXiv about a new way to search for gravitational waves. It's called the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), and it relies on how pulsars stretch and squeeze as gravitational waves wash over them -- basically, they should "shimmer" a tiny bit, and scientists [...]

January 5, 2010
2:41 PM EST