When we experience the world, we believe it’s an accurate reflection of reality. But what if it’s all an illusion? From the ...

Because the universe is a potentially replicative unit, he suggests that it’s subject to selectional pressures. Consequently, nearly everything the universe does is geared toward replication.

The universe is full of stars, galaxies and planets — it's expanding every day. (Image credit: ESA/Webb, NASA & CSA, A. Adamo (Stockholm University) and the FEAST JWST team)) ...

A galaxy in the early universe was rich with oxygen, astronomers have found. The discovery raises questions about how early ...

It's quite a big question and a lot is still unknown about the universe, but we'll tell you everything that we do know, from how the universe was created, how old it is and what it's even made of.

If the universe is infinite in size, you don't really need to worry about this conundrum. The universe, being all there is, is infinitely big and has no edge, so there's no outside to even talk about.

A flat universe has Euclidean geometry, and the simplest shape it can adopt is that of a sheet. There are also other, more complex shapes that a flat universe could have, such as a "3-torus." ...

Because the universe’s size is already infinite, its size can’t increase. So essentially, if the universe is of infinite magnitude, it cannot possibly be expanding into anything.