Penn State climatologist Michael Mann, the outspoken author of "The New Climate War," talks about what Joe Biden, Bill Gates, Jeff Bezos and the rest of us can do to help the world avert the coming climate catastrophe.
A new movie titled "Greenland" calls attention to potential threats from comets and asteroids. Visual effects supervisor Marc Massicotte and Danica Remy, president of the B612 Foundation, discuss the science behind the spectacle.
Kyle MacLachlan looks back at "Dune" and "Twin Peaks," discusses his portrayal of Thomas Edison in "Tesla" and reveals which present-day tech titan intrigues him the most. Hosted by Cosmic Log's Alan Boyle.