The Space & Beyond Blog

The discovery of black holes

Black holes are extremely compact cosmic objects so massive that not even light can escape their gravity.

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This computer simulation shows the collision of two black holes

This computer simulation shows the collision of two black holes, which produces gravitational waves. Photo: SXS

an image of the black hole at the center of galaxy M87

Using the Event Horizon Telescope, scientists obtained an image of the black hole at the center of galaxy M87, outlined by emission from hot gas swirling around it under the influence of strong gravity near its event horizon. Photo: Event Horizon Telescope collaboration et al.

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