Neil DeGrasse Tyson explains why we need planetary defense
CNN, 27 Sep 2022
In humanity’s first test of asteroid deflection technology, NASA’s DART spacecraft deliberately crashed into the Dimorphos asteroid on Monday at 7:14 p.m. ET. Astrophysicist Neil DeGrasse Tyson joins CNN’s John Berman and explains the importance of a planetary defense system. #CNN #News