New posts in Universe

Is time continuous or discrete?

As the universe expands, why do some things stretch but not others?

Is spacetime discrete or continuous?

What is the extent of the universe?

Why is oxygen the third most abundant element?

Is the observable region of the universe within the event horizon of a super-massive black hole?

Does the universe have a center?

Is there evidence of a larger universe?

What is meant when it is said that the universe is homogeneous and isotropic?

If randomness doesn't exist, how come the universe isn't a perfect sphere with predictable distribution of matter?