{"id":"src_9b8u1ra552pb","title":"Observation of Gravitational Waves from a Binary Black Hole Merger","authorName":"B. P. Abbott, R. Abbott, T. D. Abbott, M. R. Abernathy, F. Acernese, K. Ackley, C. Adams, T. Adams, P. Addesso","abstract":"On September 14, 2015, the two detectors of the Laser Interferometer Gravitational-Wave Observatory simultaneously observed a transient gravitational-wave signal. The signal sweeps upwards in frequency and matches the waveform predicted by general relativity for the inspiral and merger of a pair of black holes and the ringdown of the resulting single black hole.","tags":["gravitational waves","black holes","general relativity","ligo","spacetime"],"priceUSDC":"0.0005"}