User Mark Olson

73 votes

Accepted

Why are we building larger land-based telescopes instead of launching larger ones into space?

answered Jun 12, 2018 at 12:55

41 votes

Simple experimental evidence that Earth revolves around Sun

answered Jul 9, 2018 at 13:34

39 votes

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What would happen if someone had a telescope and watched Betelgeuse when it goes supernova?

answered Dec 8, 2018 at 23:22

24 votes

What will happen to the shape of a galaxy when a super massive black hole lying in its center dies(evaporates out)?

answered May 29, 2018 at 16:28

22 votes

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How do we know if an object is redshifted?

answered Feb 7, 2019 at 22:32

17 votes

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Why black holes are extremely cold?

answered May 28, 2018 at 18:35

15 votes

Whats the probability of a hazardous impact for human life on Mars?

answered Jul 6, 2018 at 12:03

15 votes

If gravity precedes the formation of a solar system, where did the mass come from that caused the gravity?

answered Apr 23, 2019 at 0:03

14 votes

Hypothetically, would we be able to see the moon from Saturn's North Pole?

answered May 28, 2018 at 2:56

13 votes

Accepted

What created the big bang's singularity?

answered Jul 6, 2018 at 20:50

13 votes

Would an object shot from earth fall into the sun?

answered Sep 22, 2019 at 22:30

11 votes

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How did the solar system get its angular momentum? Why did Earth not fall into the Sun at the start?

answered Jul 23, 2018 at 14:43

10 votes

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Different full moon face on different places on Earth same time

answered Jul 27, 2018 at 21:23

10 votes

Is the influence of gravity instantaneous?

answered May 22, 2018 at 16:00

10 votes

Accepted

How do we know distant stars still exist

answered Jan 30, 2019 at 23:03

9 votes

If the Moon were impacted by a suitably sized meteor, how long would it take to impact the Earth?

answered Jul 30, 2019 at 22:02

9 votes

Why do neutron stars collide instead of just revolving around each other like planets revolve around the Sun?

answered May 29, 2018 at 18:06

9 votes

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Would LIGO Detect Head-On Collision?

answered May 30, 2018 at 20:05

9 votes

Accepted

Are large body orbits self correcting?

answered Jun 13, 2018 at 17:58

8 votes

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What explains the existence of energy/matter if it cannot be created or destroyed?

answered Jul 6, 2018 at 13:53

8 votes

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How is the term "solar system" defined? Could confirmation of a new planet lead to a change in this definition?

answered Oct 6, 2018 at 23:57

8 votes

Accepted

How can a singularity actually exist?

answered Jan 5, 2020 at 16:16

8 votes

Do tides occur on planets like Neptune, having water?

answered Feb 2, 2019 at 15:56

8 votes

Stars located outside of a galaxy

answered Feb 13, 2019 at 21:57

8 votes

Why the Sun-Jupiter barycentre is outside Sun?

answered Dec 30, 2018 at 21:01

8 votes

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Would drinking melted ice water from Mars taste like sparkling water?

answered Jan 27, 2019 at 20:02

7 votes

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Earth rising and setting from moon's perspective

answered Jan 13, 2019 at 15:34

7 votes

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Does the "photo of a black hole" taken by EHT actually depict a visible light-based scenario?

answered Apr 11, 2019 at 12:01

7 votes

A non rotating asteroid of huge mass collides with earth. After the collision, does the length of the day on earth change?

answered Dec 6, 2018 at 17:35

7 votes

Accepted

Is it practical to build a giant telescope in Moon? (Considering the fact that the atmosphere of moon is very rare)

answered Jun 7, 2018 at 1:18

Stack Exchange Network

104 Answers

Why are we building larger land-based telescopes instead of launching larger ones into space?

Simple experimental evidence that Earth revolves around Sun

What would happen if someone had a telescope and watched Betelgeuse when it goes supernova?

What will happen to the shape of a galaxy when a super massive black hole lying in its center dies(evaporates out)?

How do we know if an object is redshifted?

Why black holes are extremely cold?

Whats the probability of a hazardous impact for human life on Mars?

If gravity precedes the formation of a solar system, where did the mass come from that caused the gravity?

Hypothetically, would we be able to see the moon from Saturn's North Pole?

What created the big bang's singularity?

Would an object shot from earth fall into the sun?

How did the solar system get its angular momentum? Why did Earth not fall into the Sun at the start?

Different full moon face on different places on Earth same time

Is the influence of gravity instantaneous?

How do we know distant stars still exist

If the Moon were impacted by a suitably sized meteor, how long would it take to impact the Earth?

Why do neutron stars collide instead of just revolving around each other like planets revolve around the Sun?

Would LIGO Detect Head-On Collision?

Are large body orbits self correcting?

What explains the existence of energy/matter if it cannot be created or destroyed?

How is the term "solar system" defined? Could confirmation of a new planet lead to a change in this definition?

How can a singularity actually exist?

Do tides occur on planets like Neptune, having water?

Stars located outside of a galaxy

Why the Sun-Jupiter barycentre is outside Sun?

Would drinking melted ice water from Mars taste like sparkling water?

Earth rising and setting from moon's perspective

Does the "photo of a black hole" taken by EHT actually depict a visible light-based scenario?

A non rotating asteroid of huge mass collides with earth. After the collision, does the length of the day on earth change?

Is it practical to build a giant telescope in Moon? (Considering the fact that the atmosphere of moon is very rare)