pabouk - Ukraine stay strong's user avatar
pabouk - Ukraine stay strong's user avatar
pabouk - Ukraine stay strong's user avatar
pabouk - Ukraine stay strong
  • Member for 8 years, 11 months
  • Last seen more than a month ago
  • Czech Republic
89 votes
2 answers
12k views

Why is the discovery of merging neutron stars important?

  • 923
60 votes
1 answer
9k views

Why is the asteroid belt shaped like a triangle?

49 votes
1 answer
5k views

Is there a better explanation of this picture showing the very distant star "Earendel"?

  • 1,307
48 votes
5 answers
8k views

Where does the Solar System end?

  • 34.2k
35 votes
7 answers
24k views

What's the fastest moving object in the universe?

  • 2,296
35 votes
1 answer
7k views

Considering our methods of exploration, how likely is it that there are unfound planets (not dwarf planets) in our solar system?

  • 695
35 votes
5 answers
12k views

Why did the big bang not just produce a big black hole?

  • 547
34 votes
2 answers
4k views

Why does the alignment evaluation image from JWST look like this?

  • 443
27 votes
6 answers
3k views

Can we (theoretically) spin the black hole so strong that it will be broken apart by centrifugal force?

26 votes
6 answers
4k views

What should I look for in a first telescope for a child?

  • 413
24 votes
3 answers
2k views

How does the evolution of a solar system not break the second law of thermodynamics?

24 votes
4 answers
4k views

What is a singularity? What is at the center of a black hole? Specifically regarding space-time

  • 495
21 votes
1 answer
2k views

Explaining Dark Matter and Dark Energy to layman

  • 681
20 votes
2 answers
841 views

Space expansion in layman terms

  • 6,087
19 votes
2 answers
1k views

What physical features determine if a planet is a major, minor or dwarf planet?

17 votes
3 answers
2k views

What is there in the intergalactic space?

  • 6,087
16 votes
4 answers
12k views

How to identify stars in photographs?

  • 309
16 votes
4 answers
877 views

How would we detect an Earth doppelganger planet?

  • 278
14 votes
2 answers
2k views

How does angular resolution of a telescope translate to its parallax precision?

  • 6,252
14 votes
1 answer
21k views

Exercise: 2D orbital mechanics simulation (python)

12 votes
2 answers
315 views

What's the smallest scale at which dark matter has been measured?

11 votes
2 answers
541 views

Recommendation for introductory cosmology text

  • 2,563
11 votes
1 answer
840 views

During an eclipse, does the size of the moon and sun match perfectly?

11 votes
1 answer
313 views

Dark Flow: statistical limits on existence

11 votes
1 answer
920 views

Recording Spectral Lines at Home

  • 213
11 votes
2 answers
741 views

Why all the photos from 67p are black and white?

  • 231
10 votes
1 answer
424 views

If the Wow! signal was not directed at us, then where?

  • 385
7 votes
1 answer
159 views

Time period in which a planet rotates

  • 1,743
5 votes
1 answer
373 views

What is the explanation for rapid inflation just after the big bang?

  • 258
2 votes
2 answers
351 views

How to derive the redshift of GW150914?

  • 2,955