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3 votes
2 answers
87 views

What is the difference between an Active Asteroid and a Jupiter Family Comet?

7 votes
4 answers
3k views

How close will Pluto come to Earth this year (2024)?

-1 votes
0 answers
40 views

Spinning black holes and ring singularities

0 votes
0 answers
20 views

BVR photometry and Luminiscense

18 votes
1 answer
547 views

How would a cooled down neutron star look when illuminated?

1 vote
1 answer
82 views

python question-discrepancy between number of stars found

1 vote
1 answer
60 views

Do we have the technology to create a satellite telescope constellation that uses interferometry?

2 votes
1 answer
66 views
+50

Calculating lunar parallax based on a distance between two objects at certain latitude

1 vote
2 answers
85 views

Does an infalling observer ever cross the black hole event horizon in finite proper time?

4 votes
1 answer
818 views

Stellar Mass Black Holes and the companion star dynamics

13 votes
1 answer
1k views

Sunsets: Mars/Earth

2 votes
1 answer
58 views

What stops terrestrial planets from becoming watery gas giants with water vapour atmospheres?

1 vote
1 answer
79 views

Why does infrared pass through clouds of gas and dust with minimal extinction?

3 votes
1 answer
64 views

What is the difference between albedo and Bond albedo?

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