Astronomy Beta
ProfRob
  • Member for 6 years, 11 months
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1,395 Answers

Votes Activity Newest
165
Why is the discovery of merging neutron stars important?
Oct 16 '17 at 18:44
146
How can there be 1,000 stellar ancestors before our Sun?
Jun 21 '16 at 17:23
111
Would we have more than 8 minutes of light, if the Sun "went out"?
Sep 28 '19 at 11:06
95
Could the dinosaurs have seen the asteroid that killed them?
Jan 31 '18 at 23:54
65
Is it dark inside the Sun?
Mar 5 '20 at 20:27
62
What happens to the 99.9 % of the sun-rays that do not fall on any planets or any other celestial body?
Aug 20 '16 at 17:35
59
Did I see another planet?
Mar 27 '16 at 19:43
58
Which atom is a Neutron star made of?
Oct 17 '17 at 13:40
52
Why is Gaia operating around Earth orbit? Why not send it to Neptune's orbit?
Nov 25 '19 at 7:38
50
Are binary neutron star mergers needed to explain the abundance of gold?
Oct 16 '17 at 20:05
48
Can Newton's gravity equation explain why black holes are so strong?
May 9 at 17:45
47
Is it possible for planetary rings to be perpendicular (or near perpendicular) to the planet's orbit around the host star?
Jan 10 at 10:26
45
How large can a ball of water be without fusion starting?
Mar 18 '17 at 20:00
45
What is the hottest thing in the universe?
Aug 13 '19 at 18:17
45
Puzzling quotes from astronauts about earth size
Oct 28 '18 at 8:13
44
Do we know a star that is similar to the Sun when it would be a red giant?
Jan 26 '20 at 21:33
43
Are the stars distributed in uniform distribution, on the celestial dome, with respect to brightness?
Dec 16 '19 at 10:58
42
Why is moon light not the same color as sunlight?
Jun 27 '18 at 17:51
40
Where did TRAPPIST-1a go?
Feb 23 '17 at 10:38
37
At the Big Bang, when everything was close together, why did it not "collide", violating Planck length or Pauli Exclusion Principle?
Jul 2 '20 at 12:12
37
Why are there uneven bright areas in this photo of black hole?
Apr 11 '19 at 6:43
35
Why don't (or can't) stars be more than 325 or so times the mass of the sun? What limits their size?
Jul 24 '20 at 20:44
35
Was the Geocentric Model correct at all?
Sep 16 '20 at 12:34
33
When was it worked out/discovered that our sun can't go supernova?
Jul 4 '20 at 20:05
33
Why do stars explode?
May 3 '17 at 7:06
32
Why are there so many binary systems?
Nov 14 '19 at 23:30
31
Black Holes: More Than One Entry Point?
Jul 1 at 22:12
31
How hard is it to find the Sun's "sisters?"
Apr 16 at 7:36
31
Speed of light in a black hole
Jan 22 '18 at 10:24
30
How often do supernovae occur?
Jan 21 '20 at 20:24
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