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1 vote
2 answers
141 views

If all objects move, where do we go?

9 votes
2 answers
8k views

How did they decide the length of one year even though it wasn't known that earth revolves around the sun?

3 votes
2 answers
376 views

Are the planets Mercury, Saturn, Uranus and Neptune losing mass?

1 vote
1 answer
80 views

Can gravitation waves break Solar System equilibrium?

3 votes
1 answer
63 views

Does the observed Perihelion precession of Mercury still deviate from prediction?

4 votes
2 answers
461 views

Precision in the measurement of the distance to the Sun

1 vote
0 answers
65 views

Nbody problem solving on python with Leapfrog

1 vote
0 answers
26 views

What are the time periods of precession of equinoxes of other planets?

-3 votes
1 answer
102 views

Angular velocity of planets around Earth, and Sun

1 vote
2 answers
121 views

Comet Bernardinelli-Bernstein; could it be a "planet-killer" and what could prevent it from getting close to us?

2 votes
1 answer
52 views

How to explain this elongation frequency diagram between the Sun and the Moon

5 votes
2 answers
157 views

What is the average angular distance between the Sun and the Moon?

3 votes
1 answer
86 views

How the "precession of the ecliptic" can be distinguished from the "precession of the equator"?

3 votes
1 answer
54 views

Does the magnetosphere of Jupiter protect the Galilean Moons from solar flares?

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