David Corn @DavidCornDC
And the average number of stars in a single galaxy is about 100 million. Do the math...and your head will explode. — PolitiTweet.org
Black Hole @konstructivizm
Hubble Deep Field : This photo was taken by focusing the Hubble Telescope in the emptiest part of space for 10 days… https://t.co/zK1g39gVTB