Small and finite or vast and unending?

The question of how large our universe is has plagued wo/mankind for ages. Scientists are now starting to close in on the answers. Perplexing observations beamed back by a NASA spacecraft are fuelling debates about a mystery of biblical proportions - is our Universe infinite? Scientists have announced tantalising hints that the Universe is actually relatively small, with a hall-of-mirrors illusion tricking us into thinking that space stretches on forever.