Podcast Episodes
Back to SearchDusty mysteries with Prof. Hartzell
Episode 161
Prof. Christine Hartzell tells us about the bizarre ways dust and rock behave on asteroids. She explains, "asteroids are complicated because our intu…
6 years, 9 months ago
Going back in time with Dr. Bottke
Episode 160
Dr. Bill Bottke stops by the show to talk about ancient craters on the Moon and Earth. He tells us about how you can figure out crater ages by lookin…
6 years, 10 months ago
Constellations and coordinates with Dr. Rich
Episode 159
Dr. Jeff Rich returns to the show to talk about the night sky. He explains how astronomers used constellations to communicate. He also tells us that …
6 years, 10 months ago
Planetary Defense Mission with Dr. Ernst
Episode 158
Dr. Carolyn Ernst tells us about DRACO, a camera on the DART mission. DRACO will take critical images in the final seconds of the mission. Dr. Ernst …
6 years, 11 months ago
Modeling impacts with Dr. Boslough
Episode 157
Dr. Mark Boslough describes what happens when an asteroid enters Earth's atmosphere. He tell the story of how he learned of the historic 2013 Chelyab…
6 years, 11 months ago
Measuring a collision with Dr. Thomas
Episode 156
Professor Cristina Thomas talks about NASA's first planetary defense mission: DART. DART is a spacecraft that will impact a tiny asteroid moon. She e…
7 years ago
Interstellar visitor with Dr. Knight
Episode 155
Dr. Matthew Knight tells us about a discovery that excited astronomers all around the world. 'Oumuamua is the first minor planet from outside our sol…
7 years ago
High speed impacts with Dr. Daly
Episode 154
Dr. Terik Daly talks about his experiments, where things hit other things at tens of thousands of miles per hour. These experiments create pressures …
7 years, 1 month ago
Stories behind the science with Sarah Kaplan
Episode 153
Sarah Kaplan of the Washington Post talks about science reporting. Reporters often tackle topics that are outside their expertise. Sarah explains the…
7 years, 1 month ago
Mysterious iron meteorites with Dr. Chabot
Episode 152
Dr. Nancy Chabot returns to the show to talk about iron meteorites. Iron meteorites, she explains, are cores of small planets that you can hold in yo…
7 years, 2 months ago