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…