By John Gruber
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Sarah Kaplan and Joel Achenbach, reporting for The Washington Post:
“You’re basically looking at a supermassive black hole that’s almost the size of our solar system,” or 38 billion kilometers in diameter, said Sera Markoff, an astrophysicist at the University of Amsterdam.
The image shows the boundary between light and dark around a black hole, called the event horizon — the point of no return, where the gravity of the black hole becomes so extreme that nothing that enters can ever escape. At the center of the black hole, time and space become so curved upon themselves that the laws of physics break down completely.
★ Wednesday, 10 April 2019