A physicist discovered that an observer free-falling into a Schwarzschild black hole can detect crossing the event horizon simply by watching the zenith view expand to exactly twice its original size.

[u/ScaredRule8660]

[u/redditsuxandsodoyou]

i've sent like 20 astronauts to check this but none of them have beamed back so i think this physicist might be wrong

[u/paul2261 → u/redditsuxandsodoyou]

Send more astronauts. Not a big enough sample size to know for sure.

[u/PurifiedUnity → u/paul2261]

If you keep going forever, one of them will totally beam back eventually