Astronomy Stack Exchange is a question and answer site for astronomers and astrophysicists. It only takes a minute to sign up.

Sign up to join this community
Anybody can ask a question
Anybody can answer
The best answers are voted up and rise to the top

Explore our questions

4 votes
1 answer
2k views

What does "to within less than about thirty Schwarzschild radii" mean?

1 vote
1 answer
291 views

How does Hawking Radiation work exactly?

1 vote
0 answers
54 views

Could "gravitational atom” black hole be detected using observation of gravitational microlensing?

1 vote
2 answers
86 views

Could primordial black holes explain the SMBH in the galactic centers?

0 votes
1 answer
91 views

What's the proper shape of a black hole?

1 vote
1 answer
49 views

How would a balloon structure of a universe look if we collected all mass together in a small region?

-1 votes
1 answer
77 views

How does a black hole look like independently of coordinates?

4 votes
1 answer
60 views

What does it mean that the radial coordinate becomes the time coordinate behind the horizon?

3 votes
1 answer
79 views

Is V616 Monocerotis the closest black hole?

14 votes
6 answers
7k views

What will happen to the shape of a galaxy when a super massive black hole lying in its center dies(evaporates out)?

1 vote
2 answers
114 views

How can we see black holes collapse if time inside the event horizon is infinite?

2 votes
2 answers
1k views

How far into the future can we go by traveling close to a black hole?

20 votes
2 answers
4k views

Is the center of our galaxy, the Sagittarius A* black hole a former star?

12 votes
5 answers
3k views

Is there a possibility that a white dwarf can turn into a neutron star or a black hole?

Browse more Questions