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 key to the mission's success.
26: Old, volatile, and gassy: Why comets would make unpleasant but interesting dinner guests with Dr. Bauer
25: Why couldn't New Horizons orbit Pluto?
24: Engineering the Galileo Probe, Pt 2.
23: Engineering the Galileo Probe, Pt 1.
22: Merging galaxies with Dr. Privon
21: The fascinating, hidden world of isotopes in water with Dr. Dan Petrizzo
20: Tuning in to comet radio stations with Prof. Lovell
19: Where to land on Mars, and where to look for Martian microbes with Prof. Ehlmann
18: Pluto’s big mystery with Dr. Buratti
17: Landslides on Mars with Dr. Watkins
16: The strange surfaces of asteroids with Dr. Busch
15: Finding Europa in our Antarctic backyard with Dr. Schmidt
14: We are all made of star stuff... or are we? With Dr. Rich
13: Cassini explores Saturn and its moons with Dr. Spilker
12: Exploring planets from your living room with Emily Lakdawalla
11: How many asteroids are out there? With Dr. Mainzer
10: Craters on the moon with Dr. Cohen
9: NASA high jinks with Dr. Paddack
8: Accessible asteroids with Brent Barbee
7: Exploring Mercury with Dr. Chabot
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