Water, water everywhere with Bethany Ehlmann

Water, water everywhere with Bethany Ehlmann

Planetary scientist Bethany Ehlmann has co-authored a paper presenting evidence that liquid surface water flowed on Mars as much as a billion years more recently than previously thought. That’s an extra billion years for possible life to have formed and thrived. We’ll also join Planetary Society editor Rae Paoletta as she explores water worlds throughout our solar system in a new article. Another great prize awaits the winner of the What’s Up space trivia contest. Discover more at https://www.planetary.org/planetary-radio/2022-bethany-ehlmann-mars-water

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Episoder(1316)

Touchdown! The Sights and Sounds of Perseverance on Mars

Touchdown! The Sights and Sounds of Perseverance on Mars

The Mars 2020 rover is on Mars. We have collected the most thrilling moments from the landing and the revelations that followed, including the first sounds recorded on the Red Planet. Bill Nye congrat...

24 Feb 202152min

Planetfest ’21: To Mars and Back Again

Planetfest ’21: To Mars and Back Again

The Planetary Society’s Planetfest ’21 celebrated Mars and the newest visitors to the Red Planet. Mat Kaplan shares some of his Planetfest conversation with Andy Weir, author of The Martian. We also ...

17 Feb 202143min

The Big Book of Mars: Our Obsession with the Red Planet

The Big Book of Mars: Our Obsession with the Red Planet

Mars has commanded our attention and stimulated our imaginations for millenia. Now, as 3 more spacecraft arrive, we talk with author Marc Hartzman about his new book that documents the fascination and...

10 Feb 20211h 1min

Space Policy Edition: The Big Picture on U.S. Science Funding

Space Policy Edition: The Big Picture on U.S. Science Funding

Matt Hourihan is perhaps the world's most knowledgeable expert in how the U.S. government funds basic science and development activities. He joins the show to talk about the big picture of where the m...

5 Feb 20211h 18min

A Cosmic Odyssey: Decades of Discovery at the Palomar Observatory

A Cosmic Odyssey: Decades of Discovery at the Palomar Observatory

Astronomer Linda Schweizer spent countless hours interviewing the explorers who revolutionized astronomy through observations made at California’s Palomar Observatory. She tells their fascinating stor...

3 Feb 202151min

‘Oumuamua: Avi Loeb says it may have been artificial

‘Oumuamua: Avi Loeb says it may have been artificial

Could the first object shown to have originated outside our solar system be a light sail built by an alien civilization? That’s the very controversial hypothesis put forward by distinguished Harvard a...

27 Jan 202155min

7 More Minutes of Terror: Perseverance Arrives at Mars

7 More Minutes of Terror: Perseverance Arrives at Mars

The 2020 Mars Rover will reach the Red Planet on February 18th after many months in the relative quiet of space. It will then undergo a true trial by fire as it descends to the surface. Jet Propulsion...

20 Jan 202145min

Space Policy Edition: A Mob at the U.S. Capitol

Space Policy Edition: A Mob at the U.S. Capitol

This is not your normal episode of the Space Policy Edition, but these are not normal times. The centuries-old U.S. tradition of the peaceful transfer of power ended on 6 January 2021, as a pro-Trump ...

15 Jan 20211h

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