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-1 votes
0 answers
53 views

Why don't scientists believe Earth's surface water came up from the mantle?

2 votes
0 answers
85 views

True node (NN) calculation .. off by 10 seconds

3 votes
1 answer
159 views

When did Venus get as hot as it is now?

4 votes
1 answer
90 views

When did Venus reach approximate radiation equilibrium?

1 vote
1 answer
89 views

Does the Sun have different unique orbits around barycenters?

5 votes
3 answers
2k views

Moons with synchronous rotation in our solar system

5 votes
1 answer
2k views

When did astronomy first discover that the stars are bigger than the moon?

11 votes
3 answers
1k views

What is the long term fate of the gas giants?

4 votes
5 answers
285 views

If an orbit is shifting due to orbital precession, is it still a Keplerian orbit?

7 votes
2 answers
228 views

How common for all 7 planets to be above the horizon?

4 votes
1 answer
169 views

Can rings last around planets indefinitely?

1 vote
4 answers
250 views

Tilting cycle vs orbital cycle of earth

14 votes
9 answers
3k views

Is Pluto still a dwarf planet?

-1 votes
2 answers
312 views

What is the most common method that a scientist uses to study the cyclones in the universe?

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