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Feb 23, 2018

For The First Time Ever, Astronomers Have Observed a Black Hole Ejecting Matter Twice

Posted by in categories: cosmology, particle physics

Black holes don’t just sit there munching away constantly on the space around them. Eventually they run out of nearby matter and go quiet, lying in wait until a stray bit of gas passes by.

Then a black hole devours again, belching out a giant jet of particles. And now scientists have captured one doing so not once, but twice — the first time this has been observed.

The two burps, occurring within the span of 100,000 years, confirm that supermassive black holes go through cycles of hibernation and activity.

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