Currently, thee is a project called the GEO600 in Germany. Most people have heard of the Large Hadron Collider, but this is a different deal. Just south of Hanover in Germany, the GEO600 experiment has been hunting for gravitational waves from neutron stars and black holes, Cal-tech and MIT had their own gravitational wave detectors in the twin Laser Interferometer Gravitational-wave Observatory (LIGO) detectors in Livingston, LA and Hanford, Washington. Einstein predicted gravity waves back in 1915, when nobody could directly observe them. Gravity waves are extremely small ripples in the structure of space-time caused by astrophysical events with large gravitational effect - like supernovae or binary start systems coming together (twin binary system), neutron stars, or black holes. These groups have used specialized interferometers to hunt for gravity waves, and on September 14, 2015, the LIGO detectors finally had success! A century after Einstein predicted them, gravity waves have been directly detected. Can you think why now?
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