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1 vote
3 answers
2k views

Velocity of most distant galaxies

2 votes
1 answer
117 views

Last Thursday's mile-wide asteroid that missed: what angle would it have hit?

4 votes
4 answers
1k views

Are the North Star and the moon ever visible in the night sky at the same time?

1 vote
0 answers
20 views

Request for Information on how to make a FITS Image

0 votes
0 answers
12 views

Questions on vacuum phase transitions in the universe...?

5 votes
2 answers
115 views

"To date we have covered 624 square degrees of sky near to and interior to the orbit of Venus" meaning wrt Asteroid survey Interior to Earth and Venus

2 votes
0 answers
48 views
+50

Using prospector for jwst data

2 votes
1 answer
91 views

Why do so many moons in the solar system orbit retrograde?

0 votes
0 answers
27 views

What is the relationship between core temperature and surface temperature in main-sequence stars?

4 votes
1 answer
1k views

How close would a quasar have to be to be seen with the naked eye?

5 votes
4 answers
2k views

Could two moons orbit each other around a planet?

18 votes
2 answers
3k views

Could we (Earth, Humanity, Solar System) be falling into a black hole?

-3 votes
2 answers
102 views

What is the nature of magnetism within and without the Galatic plane?

0 votes
0 answers
61 views

How does one determine the cardinal direction in which analemma was photographed?

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