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The Solar System's is ~16 galactic years old. During that whole time how close has it gotten to another star?
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What is the total mass of the high-energy particles that hit the earth?
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Andromeda is close and some of its stars are blue-shifted. My question: is there a little further away, a spiral galaxy where the relative motion of its spiral rotation that causes this exactly canceled out by the expansion of the universe?
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stupid question: is the mass of a hydrogen atom problematic?
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The Solar System's is ~16 galactic years old. During that whole time how close has it gotten to another star?
197
--
10
9
8
7
6
5
4
3
2
1
0
What is the total mass of the high-energy particles that hit the earth?
1
--
10
9
8
7
6
5
4
3
2
1
0
Andromeda is close and some of its stars are blue-shifted. My question: is there a little further away, a spiral galaxy where the relative motion of its spiral rotation that causes this exactly canceled out by the expansion of the universe?
0
--
10
9
8
7
6
5
4
3
2
1
0
stupid question: is the mass of a hydrogen atom problematic?
0
--
10
9
8
7
6
5
4
3
2
1
0
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