The Universe is a big place and there's so much we don't know about it... We do know that there's a lot of it, way more than we could ever explore in our lifetimes. But what does that mean? What kinds of things could be out there? How far away are they? How many? And how long has the universe been here?
fexl
The Universe is a big place and there's so much we don't know about it... We do know that there's a lot of it, way more than we could ever explore in our lifetimes. But what does that mean? What kinds of things could be out there? How far away are they? How many? And how long has the universe been here?