Because it is growing at an exponential rate.
The universe is so big and it will never be completely populated because it includes areas that are unlivable. The Earth is part of the whole universe.
The big bang was the BEGINNING of the universe so there was no temperature before it :P
as big as the secret to life, the universe, and everything, so very very big
Scientists believe so.
No. Universe A expands from a 'Big Bang' stops expanding, and contracts until there is a 'Big Crunch'. Then there is a new big bang and the beginning of Universe B, a middle, and another big crunch, a big bang with Universe C and so on. At the time of any 'big crunch', all matter and energy from that universe ceases to exist. It cannot manifest itself until after the next 'big bang', and then has no relation to anything in its previous manifestation.
The universe is so big that in every empty spot in the average night sky there are thousands of galaxies
because that how it was made its never ending
Current theory is the Big Bang
Well we don't know how big it can be because its a vast Universe so I hope this will answer it. Meteoroid can be as small as dust or as big as Everest so there no way of telling how big it can be
The expansion of every part of our Universe was as big as our Universe -- which, if not infinitely large, is pretty big.
Because its so vast and big even endless.
The Big Crunch: Like the opposite of the big bang, the universe collapses and goes into a point of singularity. The Big Chill: The universe will keep on expanding, until there is too few galaxies and stars, which will eventually die out too, so there will be nothing in the universe but a few black holes and decayed stars and galaxies