If a black hole were to appear between the Earth and an observer, the Earth would appear gravitationally lensed in a fashion similar to this, dependent on the Earth’s position relative to the black hole and the observer. If a black hole were to form from the Earth itself, it would create an event horizon just 1.7 centimeters in diameter. (ANDREW HAMILTON / JILA / UNIVERSITY OF COLORADO)

What Would We Experience If Earth Spontaneously Turned Into A Black Hole?

Yes, we’d all die. But for 21 minutes, we’d have the ride of a lifetime.

Ethan Siegel
Oct 22, 2020 · 9 min read

One of the most remarkable facts about the Universe is this: in the absence of any other forces or interactions, if you start with any initial configuration of gravitationally bound masses at rest, they will inevitably…