NASA's Mars simulator crew emerged after 378 days: What did they learn?

A Little More Conversation with Ben O’Hara-Byrne

NASA's Mars simulator crew emerged after 378 days: What did they learn? (1:23)

Guest: Kelly Haston, mission commander for NASA's all-volunteer Crew Health and Performance Exploration Analog (CHAPEA-1) project

Donald Trump promised a gentler tone as he addressed delegates at the Republican National Convention, did he deliver? (28:15)

Guest: Drew Kurlowski, Associate Professor of Political Science, Coastal Carolina University

Sand is one of the most consumed resources in the world and we could run short within decades (46:58)

Guest: Vince Beiser, investigative journalist, author of The World in a Grain: The Story of Sand and How It Transformed Civilization

Getting Real About Reality TV in 'Cue the Sun!' (1:03:31)

Guest: Emily Nussbaum, author of Cue the Sun: The Invention of Reality TV