Carl Sagan

Hank pays tribute to Carl Sagan, noting his accomplishment as an astronomer and his contributions to culture both pop and otherwise as one of the great popularizers of science. Happy Carl Sagan Day Like SciShow Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids Check out our awesome products over at DFTBA Records: Or help support us by subscribing to our page on Subbable: Looking for SciShow elsewhere on the internet Facebook: Twitter: Tumblr: Thanks Tank Tumblr: Sources: