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Our local supermassive black hole shot a star right out of the galaxy

13 Nov 2019, 14:00 UTC
Our local supermassive black hole shot a star right out of the galaxy James Josephides (Swinburne Astronomy Productions)

Hypervelocity stars are weird. They were first discovered a couple of decades ago, and like their name suggests, they are stars that are moving. Pretty much every star in the sky is orbiting the center of the galaxy, like the planets orbit the Sun, and those speeds can be fairly high in human terms (the Sun orbits at about 230 kilometers per second).

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