Diving Into That Lake on Mars

Diving Into That Lake on Mars

Our world was rocked by last week’s announcement of good radar evidence for a liquid water “lake” under the Red Planet’s south pole. Senior Editor Emily Lakdawalla introduces us to the story that is then taken up by two of host Mat Kaplan’s favorite Martians. The Goddard Space Flight Center’s James Garvin headed NASA’s Mars exploration program, while NASA Ames astrobiologist Chris McKay co-founded the Mars Underground more than 35 years ago. Look up! Mars is still close by, and the Perseid meteor shower is around the corner. Bruce Betts gives us the What’s Up lowdown. Learn more at: http://www.planetary.org/multimedia/planetary-radio/show/2018/0801-2018-garvin-mckay-mars-lake.htmlLearn more about your ad choices. Visit megaphone.fm/adchoices

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Space Policy Edition: Destination…Mars? Contradictions and Principles

Space Policy Edition: Destination…Mars? Contradictions and Principles

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Sextants have helped sailors find their way across oceans for centuries. Now one is onboard the International Space Station so that astronauts can learn to find their way across the solar system even ...

11 Juli 201850min

Space Policy Edition: Space Force! With Special Guest Brian Weeden

Space Policy Edition: Space Force! With Special Guest Brian Weeden

The President recently ordered the creation of Space Force—but what does that mean? What are the implications for militarization of space? National security expert Dr. Brian Weeden joins the show to e...

6 Juli 20181h 46min

Dwarf Planet Ceres Thrills as a Dying Visitor Closes In

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Ceres is the queen of the asteroid belt.  Her first Earthly visitor is nearing its last days in spectacular style.  Dawn Mission Director and Chief Engineer Marc Rayman returns with stunning images ta...

4 Juli 201832min

It’s Asteroid Week with NASA’s Planetary Defense Officer

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The dinosaurs regret their lack of a space program.  200 million years later, humans are gearing up to defend themselves from a species-ending rock.  The many challenges involved are addressed in a ne...

27 Juni 201840min

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