Dr Simon Pheonix Wednesday, February 5 · 4:58 PM · ▾ How to Stop Forgetting What You Learn | Neil deGrasse Tyson youtubeNeil 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...unlikecommentstweet52 like this|152 saw this post