The first picture of a black hole could be a bright crescent shape rather than a disk

Black holes are regions of space inside which the pull of gravity is so strong that nothing — not even light — can escape. Their existence was predicted mathematically by Karl Schwarzchild in 1915, as a solution to equations posed in Albert Einstein’s theory of general relativity.

Astronomers have had circumstantial evidence for many decades that supermassive black holes — a million to a billion times more massive than our sun — lie at the hearts of massive galaxies. That’s because they can see the gravitational pull they have on stars orbiting around the galactic centre…

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