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

1 vote
1 answer
86 views

Does the Sun have different unique orbits around barycenters?

14 votes
4 answers
3k views

How did the Earth come to be in orbit around the sun?

5 votes
2 answers
1k views

Observing the motion of the solar system and galaxy through space?

3 votes
1 answer
131 views

Cooling the early earth

5 votes
3 answers
2k views

Moons with synchronous rotation in our solar system

5 votes
3 answers
197 views

Is there a name for the star/supernova hypothesized to have been a precursor to the Solar System?

2 votes
1 answer
65 views

What secondary and tertiary conclusions can be drawn from the temperature characteristics of lunar soil sent by ISRO Chandrayaan 3?

6 votes
2 answers
1k views

What determines the edge/boundary of a star system?

5 votes
0 answers
85 views

Are dust-dust collisions necessary to explain Kordylewski clouds at Earth-Moon L4/5? Aren't the cross-sections, number density timescales too small?

32 votes
3 answers
14k views

Can our Sun become a black hole

2 votes
1 answer
94 views

Are the rotational axes of Earth and Mars parallel?

0 votes
1 answer
2k views

Why has there been no moon for 2 nights straight

2 votes
1 answer
104 views

What is the "structure" of the Solar System while traveling through Space?

14 votes
9 answers
3k views

Is Pluto still a dwarf planet?

Browse more Questions