Neil deGrasse Tyson's 'StarTalk' Returns with Book, 3rd Season Monday

"StarTalk," a science-themed late-night talk show hosted by astrophysicist Neil deGrasse Tyson, is back for a third season, which will premiere Monday (Sept. 19) on the National Geographic Channel. The season begins just a few days after the first-ever "StarTalk" companion book hit shelves this Tuesday (Sept. 13).