Big bang - Planck probe gets clearest glimpse yet of cosmic dawn.

[dtewi]

Khuutra said:

dtewi said:

Oooh. Fun nerdy terminology!

Multiple universes nor extra dimensions surprise me completely. I mean, there must be space outside of the universe, an infinite void that may be populated with other universes. And extra spatial dimensions are impossible to physically comprehend, but I'm sure there are more than three.

What I'm interested in is if this is proof of the Big Bang.

EDIT: Do the extra dimensions mean spatial dimensions or am I making an ass of myself?

I'm pretty sure that general relativity says there is no space outside of thhe universe - it's just the universe.

What? The universe is expanding, correct? That means for it to be expanding, there must be space for it to expand into, correct?