'StarTalk' with Neil deGrasse Tyson Begins Third Season Tonight

"StarTalk" with Neil deGrasse Tyson is back on TV tonight (Sept. 19) to kick off a third season of hilarious and intelligent discussions about science and pop culture. Tyson will meet with guest star Whoopi Goldberg to discuss the science and culture of superheroes, among other things. Public figures include U.S. Defense Secretary Ashton Carter  and former astronaut Kathryn Sullivan, who is the administrator for the National Oceanic and Atmospheric Administration (NOAA).