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 colleagues to figure out that the impact rate on Earth changes with time.
103: Meteor showers and “broom stars” with Dr. Ye
102: A thrilling tale of discovery with Dr. Christiansen
101: The best geologist on Mars with Dr. Francis
100: The gauntlet is thrown- explain the ammonia! with Dr. Ehlmann
99: Photons from exoplanets with Dr. Meshkat
98: A place on Earth as dry as Mars with Dr. Azua-Bustos
97: If a glacier falls in a fjord… with Dr. Koppes
96: Vega, dust, and a giant inflatable bumblebee with Dr. Ciardi
95: Asteroid hunting software with John Dailey
94: Seven hundred new craters on Mars with Dr. Daubar
93: Companionable Jupiters with Marta Bryan
92: When there’s dust there’s planets with Dr. Patel
91: Tectonic hazard on Phobos with Dr. Curren
90: The universe is full of water with Dr. Paladini
89: Underwater Flying Objects with Prof. Thompson
Bonus episode: I wrote a book!
88: Designing earthquake alarms with Dr. Burkett
87: Visions of interstellar travel with Dr. Hurt
86: Celestial cinematography with Dr. Kasliwal
85: Risk, hazard, and threat: the importance of language with Dr. Billings
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