Tuesday, February 16, 2016

Ripples in the fabric of spacetime

gravitational waves
MPI/Gravitational Physics/ITP Frankfurt/ZI Berlin
In a highly anticipated announcement this week, physicists with the Laser Interferometer Gravitational-Wave Observatory (LIGO) confirmed the existence of gravitational waves - or ripples in the fabric of spacetime. The team of scientists revealed how on September 14, 2015, twin detectors observed the gravitational 'ringing' produced by the collision of two black holes a billion light years away. The scientists listened for 20 thousandths of a second as the two giant black holes, one 35 times the mass of the sun, the other slightly smaller, circled around each other. As they finally merged, a tremendous burst of energy was released, propagating through space as gravitational waves.

Want to know more?  Read this Nature article for an overview and then use OneSearch to find scholarly peer reviewed journal articles on this topic.

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