Ripples on the Cosmic Ocean

Ripples on the Cosmic Ocean

What happens in space doesn’t stay in space. Historian Dagomar Degroot joins Planetary Radio host Sarah Al-Ahmed to explore how shifting solar cycles, volcanic eruptions on Venus, Martian dust storms, and even mistaken sightings of lunar forests have influenced life, science, and society on Earth. His new book, “Ripples on the Cosmic Ocean: An Environmental History of Our Place in the Solar System,” reframes the Solar System as part of our cosmic environment, one that has shaped humanity’s past and will define our future.

Then, Planetary Society Director of Government Relations Jack Kiraly updates us on the latest developments in space policy, including the ongoing search for NASA’s next administrator and proposed changes to the Artemis program’s launch vehicles. And stick around for Bruce Betts, The Planetary Society’s chief scientist, in What’s Up.

Discover more at: https://www.planetary.org/planetary-radio/2025-ripples-on-the-cosmic-ocean

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Charley Kohlhase: Engineer, Artist, Cassini Mission Designer

Charley Kohlhase: Engineer, Artist, Cassini Mission Designer

Charley Kohlhase: Engineer, Artist, Cassini Mission DesignerLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listene...

3 Touko 200428min

Ray Bradbury Returns!

Ray Bradbury Returns!

Ray Bradbury Returns!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

26 Huhti 200428min

Magnets Roving on Mars

Magnets Roving on Mars

This week we hear about the strategically located magnets on the Mars Exploration Rovers and how are telling us more about the red planet.Learn more about your ad choices. Visit megaphone.fm/adchoices...

19 Huhti 200425min

Celebrate With The Mars Exploration Rover Team

Celebrate With The Mars Exploration Rover Team

With lots to celebrate, The Planetary Society threw a party for the scientists and engineers who have made Spirit and Opportunity such amazing successes, and you're invited!Learn more about your ad ch...

12 Huhti 200422min

Life on Mars...and Earth

Life on Mars...and Earth

We visit Harvard biologist Andrew Knoll for a conversation about finding life on the red planet. Emily Lakdawalla is seeing red on another of Earth's neighbors, and Bruce Betts spins a tale of Death S...

5 Huhti 200429min

A Salty Sea on Mars

A Salty Sea on Mars

A Salty Sea on MarsLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

29 Maalis 200429min

Far Out Sedna

Far Out Sedna

Far Out SednaLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

22 Maalis 200431min

Defending Earth From Asteroids

Defending Earth From Asteroids

Defending Earth From AsteroidsLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

15 Maalis 200428min

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