Recent questions in Astrophysics

+27 votes

0 answers

Does our planet rotate around the Sun or does it move in a larger orbit?

asked May 11, 2023 in Astrophysics by Cloudsnapper

+24 votes

0 answers

What would Earth's escape velocity be if there were no other planets or stars? Wouldn't Earth's gravity pull an object back eventually regardless of how fast it was going?

asked May 11, 2023 in Astrophysics by Willferox

+203 votes

0 answers

Can you take information from an object that falls into a black hole? If not, why not?

asked May 10, 2023 in Astrophysics by Gray

+19 votes

0 answers

How do we know that there are supermassive black holes at the center of most galaxies if they can’t be seen directly?

asked Apr 20, 2023 in Astrophysics by Spiderhoof

+196 votes

0 answers

Is light pulled forward by the vacuum of space analogous to lift from suction in a void? As space expands, does it pull time behind it?

asked Apr 19, 2023 in Astrophysics by AstralEnigma

+1 vote

0 answers

Every planet, moon, and star has a spherical shape. If their initial shape was not spherical, did they undergo a process of being shaped that way over billions of years?

asked Apr 18, 2023 in Astrophysics by billathome65

+15 votes

0 answers

Are all the stars we see in the sky actually stars, or are some planets?

asked Apr 17, 2023 in Astrophysics by brian (3.3k points)

+26 votes

0 answers

Will time end when all the particles in the universe reach maximum entropy? Would this imply the universe is finite?

asked Apr 17, 2023 in Astrophysics by Doall

+185 votes

0 answers

If the space between the galaxies is expanding how is it possible that the Milky Way and Andromeda galaxy are on a collision course?

asked Apr 16, 2023 in Astrophysics by andys342

+20 votes

0 answers

An atheist once used a metaphor, saying that if you tied a piece of string connecting two balls and waved one ball around, they will never touch, hence why the moon doesn’t hit Earth. If so, where is the piece of string connected from Earth to Moon?

asked Apr 16, 2023 in Astrophysics by EnchantedVagabond

+2 votes

0 answers

How long will our Sun and solar system last?

asked Apr 15, 2023 in Astrophysics by Ansley2408 (2.2k points)

+15 votes

0 answers

How do you explain how a singularity created everything in our observable universe if nothing else existed before it popped into existence?

asked Apr 13, 2023 in Astrophysics by BLUEJACKET

+32 votes

0 answers

Our closest star other than the Sun is Proxima Centauri. It’s potentially the most fascinating, considering its distance. Why hasn’t the JWT looked at that?

asked Apr 13, 2023 in Astrophysics by jonny foreigner

+27 votes

0 answers

Do all moons orbit at the same rate as their planet?

asked Apr 13, 2023 in Astrophysics by EthericSculptor

+24 votes

0 answers

How many supernovae happen daily in the observable universe?

asked Apr 12, 2023 in Astrophysics by Have-a-go-Seano

+21 votes

0 answers

How could the universe have begun 13.8 billion years ago, and be infinite now? How can it have come from non-existence to infinity within a finite period of time?

asked Apr 12, 2023 in Astrophysics by DIY womble

+180 votes

0 answers

Does w1nd energy comes from the Sun?

asked Apr 11, 2023 in Astrophysics by Scotmac

+5 votes

0 answers

Could we one day invent technology to turn jacks into black holes so we may turn a few stars into our own black hole?

asked Apr 11, 2023 in Astrophysics by mainman

+314 votes

0 answers

What do flat-Earthers think about black holes?

asked Apr 10, 2023 in Astrophysics by Fitzy123

+971 votes

0 answers

Why is Black Hole Sagitarius A the Galactic Centre of Milky Way Galaxy? What does it implicate?

asked Apr 10, 2023 in Astrophysics by nmlyons31

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