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Thorne predicted LIGO's first discovery will come between 2014 and 2017.

For years, scientists have been trying — and failing — to detect theoretical ripples in space-time called gravitational waves.

A Nobel Prize was awarded in 1993 for detecting that gravitational waves are emitted by circling neutron stars. ...sorry, you cannot view external links. To see them, please REGISTER or LOGIN

Although gravitational radiation has not been directly detected, there is indirect evidence for its existence. For example, the 1993 Nobel Prize in Physics was awarded for measurements of the Hulse-Taylor binary system which suggests gravitational waves are more than mathematical anomalies. Various gravitational wave detectors exist. However, they remain unsuccessful in detecting such phenomena.

The orbit has decayed since the binary system was initially discovered, in precise agreement with the loss of energy due to gravitational waves predicted by Einstein's general theory of relativity. The total power of the gravitational radiation (waves) emitted by this system presently, is calculated to be 7.35 × 10^{24} watts