Timtech's user avatar
Timtech's user avatar
Timtech's user avatar
Timtech
  • Member for 10 years, 5 months
  • Last seen more than 1 year ago
22 votes
2 answers
7k views

Do all the objects in the universe exert force on all other objects?

17 votes
2 answers
4k views

Do the orbits of planets change sometimes?

15 votes
1 answer
2k views

Why does the Moon seem larger when it is close to the horizon? [duplicate]

15 votes
1 answer
877 views

Will an observer falling into a black hole be able to witness any future events in the universe outside the black hole? [duplicate]

15 votes
3 answers
2k views

How hot must a star get before it is considered to be a star?

14 votes
3 answers
1k views

If nothing travels at the speed of light, except light, how can a black hole also pull light into itself?

8 votes
1 answer
18k views

How long does it take to produce a star? Why does it take that long?

8 votes
3 answers
2k views

I'd like to become an astronomer. What experience do I need? [closed]

7 votes
2 answers
2k views

What gases are needed to make a star?

5 votes
2 answers
3k views

What are shooting stars and how are they formed? [duplicate]

4 votes
3 answers
919 views

What is a wormhole?