Recent questions in Cosmology

+7 votes

0 answers

Where is the center of the universe from where the Big Bang originated? Where is our solar system/Galaxy located therein?

asked Feb 17, 2023 in Cosmology by Not Too Sure

+10 votes

0 answers

Does a test mass falling into a black hole reach the singularity before the hole has evaporated? In other words, how much time has elapsed for a distant observer if time has elapsed for the incident particle to reach the singularity?

asked Feb 17, 2023 in Cosmology by SteveC

+22 votes

0 answers

How can something expand into nothingness?

asked Feb 16, 2023 in Cosmology by greenmanx

+16 votes

0 answers

What is a black hole, its size, and cause?

asked Feb 16, 2023 in Cosmology by Westy123

0 votes

0 answers

Doesn't the "multiverse" still count as the universal because the universe includes all space, matter, and time?

asked Feb 14, 2023 in Cosmology by Ljs17

+68 votes

0 answers

If you were able to survive falling into a black hole (singularity), would you see your own future as you approached it at light speed or would things appear normal until the last moment of impact?

asked Feb 14, 2023 in Cosmology by pepperoniclassy

+119 votes

0 answers

What would happen if we made a spaceship strong enough to withstand a black hole in order to go into it to explore it?

asked Jan 17, 2023 in Cosmology by EchoingTwilight

+23 votes

0 answers

Could the Earth have been formed by 5 collisions of other planets through black holes?

asked Jan 15, 2023 in Cosmology by gangjibboom

+63 votes

0 answers

What makes one Galaxy have more dark matter than another?

asked Jan 15, 2023 in Cosmology by Hurttt

+227 votes

0 answers

Most galaxies are moving away from the Milky Way at more than the speed of light. Consider a Galaxy crossing between the MW and Andromeda at twice the SOL. Would we see it? Would it have any gravitational influence? Would it be tangible?

asked Jan 14, 2023 in Cosmology by EmberWhisper

+16 votes

0 answers

If the Big Bang is true, is the universe a closed system where no new matter or energy can be added?

asked Jan 12, 2023 in Cosmology by magnetthrift

+34 votes

0 answers

What is the scientific consensus on the existence of a giant black hole in the center of our Milky Way Galaxy? What is the evidence for or against its existence? If it does exist, what is its size and age according to scientific estimates?

asked Jan 11, 2023 in Cosmology by CelestialTwilight

+2 votes

0 answers

If each atom has another smaller universe inside it, then how big is our own universe?

asked Jan 11, 2023 in Cosmology by twr88

+15 votes

0 answers

Does a black hole truly trap light or are we simply seeing a gathering of dark matter said forming at the back of a working Galaxy making observations like trying to look through a black balloon full of crude oil?

asked Jan 10, 2023 in Cosmology by Sparkyman

+186 votes

0 answers

What are the black holes?

asked Nov 19, 2022 in Cosmology by Matthew78

+19 votes

0 answers

Why isn’t a Creator necessary to explain why the universe is expanding from a state of high density and temperature? Doesn’t the physics of what happens with high temperatures need a designer?

asked Nov 17, 2022 in Cosmology by VeeFource

+37 votes

0 answers

What happens to all the matter in a universe when a black hole is created from the destruction of that universe?

asked Nov 14, 2022 in Cosmology by benchodthe1st

+9 votes

0 answers

Was the Big Bang a black hole?

asked Oct 17, 2022 in Cosmology by MysticVerse

+24 votes

0 answers

What kind of pure energy existed in the first moments of the Big Bang, before any particles were in existence? Why is it called pure energy?

asked Oct 14, 2022 in Cosmology by j.k

+10 votes

0 answers

Where did the materials that made up the Big Bang come from?

asked Oct 11, 2022 in Cosmology by EmberWhirl

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