Stephen William Hawking (à g.) et Jacob David Bekenstein

Hawking and Bekenstein dispute around black hole

In the fall of 1973 Dr. Stephen W. Hawking, who has spent his entire professional career at the University of Cambridge, found himself ensnared...

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Numerical simulations of the gravitational waves emitted by the inspiral and merger of two black holes. The colored contours around each black hole represent the amplitude of the gravitational radiation; the blue lines represent the orbits of the black holes and the green arrows represent their spins. [Credit: C. Henze/NASA Ames Research Center]

Gravitational waves detected 100 years after Einstein’s prediction. Video.

For the first time, scientists have observed ripples in the fabric of spacetime called gravitational waves, arriving at the Earth from a cataclysmic event...

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