Neil deGrasse Tyson addresses sexual misconduct allegations: "The concept of personal space has evolved"
6:01am PDT - October 8th, 2019 neil degrasse tyson - CBS NewsAstrophysicist Neil deGrasse Tyson is sharing his letter archive and revealing his thoughts on everything from the meaning of life, to the existence of Bigfoot. His new book, "Letters from an Astrophysicist," contains more than 100 letters, Facebook posts and…