Is the universe infinite? Scientists reveal how vast it really is.. | NYGazet

The question of whether the cosmos is infinite, or simply unimaginably large, remains one of the most profound mysteries in astrophysics.

The microwave background is strikingly smooth, with only tiny fluctuations. This presents a puzzle: opposite sides of the sky are too far apart for heat to have travelled between them since the Big Bang, yet they share nearly identical temperatures. ... [274 chars]