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Questions tagged [universe]

Concerning the entire universe, the universe itself, and alternate or parallel universes.

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votes
1answer
441 views

If our universe nucleated into a lower energy state without completely annihilating us all what could be the effects of changes in physical constants? [closed]

If our universe is in a state of false vacuum, and if it tunnels into a lower energy state, the most probable scenario is that all know particles and forces would be completely transformed which would ...
7
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2answers
283 views

Taming wormholes

An ancient civilization mapped wormholes when the universe was quite young and smaller. This allowed them to reach other galaxies (wormholes from our galaxy to others). They mapped it all. Humans ...
5
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3answers
319 views

Could life in a planemo be sustained by cosmic background radiation?

I need to create a race that should be utterly older than humanity (and as such, much more powerful). My idea is to have that race originate from a rock planemo - a rogue planet, orbiting the center ...
9
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2answers
348 views

Cosmic Background Radiation in the past

I have a story where a species of the very first (literally first) carbon-based humanoid life (surprise!) that happen to emerge roughly seven billion years ago (their home system were formed twelve ...
15
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5answers
2k views

Physical laws for a matter-filled universe

The Setting: I have an idea for a universe that, in an inversion to our own, is filled for the most part with matter in solid, liquid, gaseous or plasma form, while vacuum and degenerate matter is ...
2
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2answers
2k views

Are planets in the same altitude level? [closed]

Maybe this has been asked with another name, but I didn't find it. 1) Are planets in the same altitude level? 2) What defines altitude in the space (universe)? 3) Is the universe a XYZ plane? 4) ...
2
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1answer
1k views

Okay gentlemen, we've voted to destroy the universe. Now, how do we do it? (Methods please) [closed]

Still exploring some concepts from a world where an elder race has attained a godlike condition: The Ruling Council has unanimously voted that the universe must be reset. The main justification is ...
9
votes
2answers
7k views

What would happen to the universe if gravity became slightly stronger? [duplicate]

Almost the same as my other question but it isn't about how the universe would form. What would happen if to the universe if someone changed the strength of gravity by say 2%?
18
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1answer
3k views

What would the Universe be like if gravity was slightly stronger?

As the title says, what would the universe be like if the gravitational force was 0.1% stronger but the other forces (strong and weak nuclear forces, electromagnetic force) stayed the same? Would the ...
7
votes
2answers
243 views

Cosmological consequences of a world with super-high refraction and atmosphere opaqueness

Disclaimer: the overall idea of the world as presented is basically lifted from Strugatsky Brothers "Inhabited Island". The details of the question are for a derivative work in that universe. Imagine ...