StarTalk Radio

StarTalk Radio is a science podcast hosted by Neil deGrasse Tyson since 2009. Tyson takes a popular culture angle on points of discussion with co-hosts and various celebrity guests. Bill Nye is a frequent guest host and guests have included Morgan Freeman, Kristen Schaal, Jon Stewart, Stephen Colbert, Sarah Silverman, Whoopi Goldberg, and many others.

On December 3, 2014, Elmo appeared in a video segment with NASA astronaut Ricky Arnold interviewed by correspondent Stacey Severn.