163: Modeling millions of asteroids with Dr. Dotson
Dr. Jessie Dotson talks about her asteroid risk assessment research. She describes how she and her team create comprehensive models of asteroid impacts. Their research shows that the consequences of a...
3 Nov 201916min
162: Charon's surprises with Dr. Beyer
Dr. Ross Beyer talks about Pluto's companion, Charon. He describes how he derived a theory explaining how Charon's "wonky" plains formed. He compares being a planetary geologist with a crime scene inv...
20 Okt 201925min
161: Dusty mysteries with Prof. Hartzell
Prof. Christine Hartzell tells us about the bizarre ways dust and rock behave on asteroids. She explains, "asteroids are complicated because our intuition fails." Tools like shovels become useless, fo...
6 Okt 201921min
160: Going back in time with Dr. Bottke
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 looking at the nearby rocks, and how that led him and his...
22 Sep 201920min
159: Constellations and coordinates with Dr. Rich
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 anyone can invent their own constellation. In a tim...
8 Sep 201912min
158: Planetary Defense Mission with Dr. Ernst
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 talks about how heritage is important in spacefligh...
25 Aug 201917min
157: Modeling impacts with Dr. Boslough
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 Chelyabinsk impact. He also shares what it was like to see...
11 Aug 201913min
156: Measuring a collision with Dr. Thomas
Professor Cristina Thomas talks about NASA's first planetary defense mission: DART. DART is a spacecraft that will impact a tiny asteroid moon. She explains why ground-based telescope observations are...
28 Juli 201915min
