The Sky Is Filled With Galaxies

A new paper just published in the prestigious Astrophysical Journal makes a stunning claim: There are ten times as many galaxies in the Universe as we previously thought. At least. The total number comes in at about two trillion of them. Two. Trillion. Galaxies. Now, let me be clear. This doesn't meant the Universe is ten times bigger than we thought, or there are ten times as many stars. I'll explain -- I mean, duh, it's what I do -- but to cut to the chase, what they found is that there are l...