Today is Carl Sagan Day. It would be his 77th birthday. In celebration of my favorite popularizer of science (with Neil Degresse Tyson coming in very close second of course), here’s an incredible and inspirational YouTube series called The Sagan Series. Watch and be inspired to go out and learn something.

“Somewhere, something incredible is waiting to be known.” – Carl Sagan

Part 1 – The Frontier is Everywhere

Part 2 – Life looks for Life

Part 3 – A Reassuring Fable

Part 4 – Per Aspera Ad Astra

Part 5 – Decide to Listen

Part 6 – End of an Era: The Final Shuttle Launch

Part 7 – The Astronomical Perspective

Part 8 – Gift of Apollo