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Results tagged with cosmology
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user 258
Questions about the origin, history, evolution and fate of the Universe.
11
votes
2
answers
2k
views
Are we moving ever closer to the center of our Galaxy due to a super massive black hole?
I've seen in documentaries that at the center of each galaxy is a super massive black hole which holds the galaxy together.
Since black holes have such a strong pull, are we slowly being pulled in c …
- 609
16
votes
3
answers
2k
views
How do we know dark matter/dark energy exists?
I've never quite understood the theory behind why dark matter and dark energy exist. I know it has something to do with gravitational pull being stronger than what we calculate it SHOULD be, could som …
- 609