Neil deGrasse Tyson and Brian Cox Discuss Lightsabers

February 8, 2016 16:59 EST • Alexandre Vallières-Lagacé • 1 minute read

Awhile back, Neil deGrasse Tyson and Brian Cox had a little Twitter fight regarding lightsabers and how they would, according to Neil, pass right through each other. This little Twitter feud was revisited by both of them when filming a segment for the National Geographic.