Archives for August 27, 2010

How much stuff is in the Universe?

“The most incomprehensible thing about the Universe is that it is comprehensible.” -Albert Einstein The observable Universe is huge. Incredibly, mind-bogglingly huge. When we look out, in any direction, we see galaxies upon galaxies upon galaxies, stretching for billions and billion of light years. This one picture, taken of a region of sky just one-tenth…