Worlds of snow and ice

From Venus to Pluto, our solar system contains a myriad of planets, moons and other bodies whose surfaces are covered in snow and ice made of water and other exotic stuff. Saturn’s moon Enceladus is among the most intriguing. Colin Meyer, Jacob Buffo and their associates have modeled its ice and the plumes that emanate from the moon’s south pole. These geysers may not originate in the ocean deep below. Planetary Society editor Rae Paoletta is also fascinated by the worlds with ice-like deposits and activity. Bruce Betts keeps us out there with a Titanic random space fact and a new space trivia contest. Discover more at https://www.planetary.org/planetary-radio/2022-meyer-buffo-enceladus-plumes

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The Search for 100 Earths

The Search for 100 Earths

Yale astronomer Debra Fischer has spent decades hunting for exoplanets. Now she leads the 100 Earths project that includes the Lowell Observatory and astrophysicist Joe Llama. Debra and Joe join us fo...

26 Feb 202045min

Life=Matter+Information: Paul Davies and the Demon in the Machine

Life=Matter+Information: Paul Davies and the Demon in the Machine

Physicist, cosmologist, astrobiologist and author Paul Davies’ new book explores what he believes to be the defining quality of life on Earth and perhaps elsewhere. He talks about this and much more i...

19 Feb 20201h 10min

Another Goldilocks World and the Space Telescope That Discovered It

Another Goldilocks World and the Space Telescope That Discovered It

The planet has the less than romantic name TOI 700 d, but its discovery has generated passion among those searching for another Earth, including Emily Gilbert. The graduate student is lead author of a...

12 Feb 202051min

Space Policy Edition: Is the Moon a Stepping-Stone or a Cornerstone for Mars? (with Laura Seward Forczyk)

Space Policy Edition: Is the Moon a Stepping-Stone or a Cornerstone for Mars? (with Laura Seward Forczyk)

A new bill from the House of Representatives threatens to upend NASA's Artemis program and refocus the space agency on sending humans to Mars by 2033. Space policy expert Laura Seward Forczyk joins th...

7 Feb 20201h 13min

A Great Space Observatory Goes Dark: The Legacy of Spitzer

A Great Space Observatory Goes Dark: The Legacy of Spitzer

The Spitzer Space Telescope, one of NASA’s four great space observatories, was decommissioned on January 30. Mat Kaplan celebrates its discoveries and legacy with three leaders of the mission in this ...

5 Feb 20201h 24min

Mighty Jupiter Revealed

Mighty Jupiter Revealed

It’s more massive than all the other planets combined. In nearly four years at Jupiter the Juno spacecraft has returned science that is revolutionizing our understanding of this gigantic world. Princi...

29 Jan 202031min

The Coming Descent to Asteroid Bennu

The Coming Descent to Asteroid Bennu

After a year of circling close to near-Earth asteroid Bennu, the OSIRIS REx spacecraft is almost ready to dip down and collect a surface sample for return to labs on our home planet. Principal Investi...

22 Jan 20201h 2min

The MILO Institute: Opening the Solar System for Exploration by All

The MILO Institute: Opening the Solar System for Exploration by All

Planetary scientist and bestselling author Jim Bell is joined by space entrepreneur Lon Levin to tell us about the MILO Institute, a new collaboration by Arizona State University, Lockheed Martin and ...

15 Jan 202059min

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