Dr Simon Pheonix Wednesday, February 5 · 7:58 PM · ▾ How to Stop Forgetting What You Learn | Neil deGrasse Tyson unknownNeil deGrasse Tyson is the Frederick P. Rose Director of the Hayden Planetarium, host of StarTalk Radio, and author. He rejoins us to discuss his latest book...unlikecommentstweet109 like this|27 saw this post