Recent questions in Astronomy

+4 votes

0 answers

Is it true that Archimedes would need the lever that is longer than the diameter of the observable universe if he wanted move the earth with his strength by using the moon as pivot point? Let assume that the levers is indestructible and never bend.

asked Feb 15, 2022 in Astronomy by Mark101010

+223 votes

0 answers

How old is our Galaxy? Are there any galaxies that are older than ours? If so, what is their estimated age and distance from earth?

asked Feb 15, 2022 in Astronomy by parahandy

+22 votes

0 answers

What are the conditions necessary for a planet to be habitable? Could a planet go through cycles of being inhospitable and then re-hospitable over time?

asked Feb 15, 2022 in Astronomy by LuminousSculptor

+27 votes

0 answers

What does the Earth's twin Theia look like?

asked Feb 15, 2022 in Astronomy by Jason Appleby

+11 votes

0 answers

Is it foolish to believe there are non-human people living on another planet?

asked Feb 15, 2022 in Astronomy by DomP182

+173 votes

0 answers

Can we see Earth from space? If so, does the light from other stars affect what we see?

asked Feb 15, 2022 in Astronomy by NovaPulse

+164 votes

0 answers

What are some good uses for a telescope? Is it worth buying one?

asked Feb 15, 2022 in Astronomy by John eddie

+300 votes

0 answers

Did they find a black hole in the Galaxy AGC 114905 or are they still looking?

asked Feb 14, 2022 in Astronomy by PaulBlackpool

+61 votes

0 answers

Why does the Earth look so small from the Moon?

asked Feb 14, 2022 in Astronomy by DIYer32

+27 votes

0 answers

If the Earth is 27,000 light-years from the center of our Galaxy, then how do we know our Galaxy did not explode 26,000 years ago and we are just waiting to learn about it?

asked Feb 14, 2022 in Astronomy by hacktoad

+7 votes

0 answers

What is the difference between inner and outer planets? Why is there no planet between Mars and Jupiter?

asked Feb 14, 2022 in Astronomy by igorrubets (3.2k points)

+4 votes

0 answers

If an entire solar system had a blue sun, how much of the electromagnetic spectrum would the organisms be able to see/interact with?

asked Feb 14, 2022 in Astronomy by Dacron (2.4k points)

+23 votes

0 answers

Why is it impossible for Mars to orbit the Sun between Earth and Jupiter, but possible for Venus to do so?

asked Feb 14, 2022 in Astronomy by AstralWhirl

+12 votes

0 answers

Can you explain why so many planets and moons are tidally locked and what is asynchronous locking?

asked Feb 14, 2022 in Astronomy by DaveS1984

+16 votes

0 answers

Earth rotates at around 1,000MPH on its axis while rotating around the sun at around 18.5 miles a second. How is it that we can spot the same constellations of stars on any given night?

asked Feb 14, 2022 in Astronomy by limestone cowboy

+18 votes

0 answers

What is the most realistic planet that is inhabited by cats?

asked Feb 14, 2022 in Astronomy by CelestialTwilight

+3 votes

0 answers

Where is Earth located in the Milky Way?

asked Feb 14, 2022 in Astronomy by LunarEnigma

+24 votes

0 answers

Can the sun and moon ever collide?

asked Feb 14, 2022 in Astronomy by LunarCharm

+21 votes

0 answers

If an astronomical object was so remote that it was no longer within the gravitational field of any other object, would it be motionless?

asked Feb 14, 2022 in Astronomy by EmberOracle

+116 votes

0 answers

Do astronomy researchers need to do the data modelling themselves? If so how? Say, with what computer software?

asked Feb 14, 2022 in Astronomy by Herr Trigger

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