“Astronomers have watched a dying star fail to explode as a supernova, instead collapsing into a black hole. The remarkable sighting is the most complete observational record ever made of a star's transformation into a black hole, allowing astronomers to construct a comprehensive physical picture of the process.

…

The discovery will help explain why some massive stars turn into black holes when they die, while others don't.”

https://phys.org/news/2026-02-supernova-clearest-view-star-collapsing.html

Probably a stupid question, but doesn't time effectively stop from the POV of the observer at the event horizon?

17 minutes ago, dimreepr said:

Probably a stupid question, but doesn't time effectively stop from the POV of the observer at the event horizon?

No, it does not.

20 minutes ago, Genady said:

No, it does not.

OK,but please explain why I'm mistaken?

2 minutes ago, dimreepr said:

OK,but please explain why I'm mistaken?

A free-falling observer doesn't observe anything special while crossing event horizon.

(Without looking outside.)

But it does for a 'far-away' observer, as we would be, watching the stellar collapse in Andromeda.
Is that what you meant, Dim ?

29 minutes ago, MigL said:

But it does for a 'far-away' observer, as we would be, watching the stellar collapse in Andromeda.
Is that what you meant, Dim ?

I think so.

Yes.