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Planetary Radio: Space Exploration, Astronomy and Science

The Planetary Society

Planetary Radio brings you the human adventure across our Solar System and beyond. We visit each week with the scientists, engineers, leaders, advocates, and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Sarah Al-Ahmed and Planetary Society colleagues including Bill Nye the Science Guy and Bruce Betts as they dive deep into space science and exploration. The monthly Space Policy Edition takes you inside the

science

All Episodes

46:55

What’s Next for Mars Exploration?

Planetary Radio: Space Exploration, Astronomy and... ·

2019/12/25

The Red Planet is slowly revealing its deepest secrets, but there’s much more to learn. The biggest mystery is whether it has ever been home to life. Caltech and JPL planetary scientist Bethany Ehlmann lays out the path ahead in a fascinating conversation. The holiday night sky is alive with stars, planets and even a meteor shower. Bruce Betts will tell all in What’s Up. Our last episode of the year opens with space exploration headlines from the Planetary Society’s news digest, The Downlink. Learn

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38:51

Meet the Planetary Society’s Newest Asteroid Hunters

Planetary Radio: Space Exploration, Astronomy and... ·

2019/12/18

Six amateur astronomers and small observatories around the world have just been named as the recipients of the 2019 Eugene Shoemaker Near Earth Object grants.You’ll meet an Italian who watches the skies in Sicily and a Minnesota high school teacher who remotely operates a telescope in Texas. Chief scientist Bruce Betts will tell us why the Society has proudly awarded this funding for 22 years. He’ll return for this week’s What’s Up. We’ve also got space exploration headlines from The Downlink. Learn

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64:55

The Creators of The Expanse

Planetary Radio: Space Exploration, Astronomy and... ·

2019/12/11

Season 4 of The Expanse is about to begin on Amazon Prime. Host Mat Kaplan visits with the authors of the eight novels (so far) that are the basis of this outstanding hard science fiction series that begins with humankind having become a spacefaring species that spans the solar system.We’ve also got space headlines from The Downlink.Bruce Betts celebrates more recognition for the Planetary Society’s LightSail project in this week’s What’s Up.

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97:01

Space Policy Edition: The Biggest Policy Moments of...

Planetary Radio: Space Exploration, Astronomy and... ·

2019/12/06

As the 2010s come to a close, Marcia Smith, the founder of Space Policy Online, rejoins the show to explore the most significant and impactful space policy decisions of the 2010s. Mat and Casey also discuss the recently-approved European Space Agency budget, and what it means for planetary defense and Mars sample return efforts. Learn more about this month’s topics through links on the episode page. https://www.planetary.org/multimedia/planetary-radio/show/2019/space-policy-edition-44.htmlSee

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46:17

A Toast to Alcohol in Space

Planetary Radio: Space Exploration, Astronomy and... ·

2019/12/04

They are not for everyone, but there’s no doubt that alcoholic beverages have been part of human culture for as long as there has been human culture. And there’s no reason to think booze won’t follow us across the solar system. Host Mat Kaplan talks with Chris Carberry about his comprehensive and eye-opening book, Alcohol in Space: Past, Present and Future. The December Solstice edition of The Planetary Report has just been published online. Editor-in-chief Emily Lakdawalla provides an enticing

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51:02

Seeking the Killer Space App with Space Tango

Planetary Radio: Space Exploration, Astronomy and... ·

2019/11/27

Organizations are using the microgravity environment of the International Space Station to develop unique new products. One of them is Kentucky-based Space Tango. We’ll meet its chairman and co-founder and the woman who manages its Tangolab. Also, a NASA rep who works with these pioneers. Time magazine has named the Planetary Society’s LightSail its aerospace invention of the year! Society CEO Bill Nye is grateful to all who have been part of the project. Bruce Betts provides a solar sail update at

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49:33

Space Books and Gifts for Space Kids of all Ages

Planetary Radio: Space Exploration, Astronomy and... ·

2019/11/20

Our own Emily Lakdawalla, Planetary Society senior editor and book lover, shares her 2019 list of space books for everyone, from infant to adult. She also presents a list of cool space gifts recommended by scientists and engineers. Bruce Betts provides a tantalizing tease for what could be a brief but massive shower of meteors.And there’s much more to look for in the fall sky. You’ll find links to the complete lists of Emily’s recommended space books and gifts

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87:41

A Passionate Conversation with Carolyn Porco

Planetary Radio: Space Exploration, Astronomy and... ·

2019/11/13

The outspoken planetary scientist who led the Cassini imaging team finally sits down with Mat Kaplan for a revealing, fun conversation. We also talk with astronomer Jay Pasachoff while he watches tiny Mercury crawl across the face of the Sun. Chief scientist Bruce Betts was in the Planetary Society parking lot enjoying the November 11th transit of Mercury.He joins us from there for What’s Up. Learn more about this week’s guest and topics

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49:53

Our Mysterious Sister: Venus

Planetary Radio: Space Exploration, Astronomy and... ·

2019/11/06

Astrophysicist Javier Peralta takes us deep into the thick, fast-moving clouds of the world that is still called Earth's sister by some. Venus is slow to reveal its secrets. Jason Davis helps us celebrate the 50th anniversary of Apollo 12.The Planetary Society wants to hear your space goals, accomplishments and dreams! And Bruce Betts reveals the identity of the first gourmet in space. Space headlines from The Downlink, too. Learn more about this week’s guest and topics

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90:28

Space Policy Edition: How a Report Can Move Mountains

Planetary Radio: Space Exploration, Astronomy and... ·

2019/11/01

How can a simple report—just words on a page—lead to creation of a spacecraft? We explore how a 2019 report on the need for a dedicated, space-based telescope to find threatening near-Earth asteroids motivated NASA to pursue that very mission. We speak with Dr. Jay Melosh, planetary scientist and chair of the National Academies committee behind that report, on how it came together and how the process works behind the scenes. We also check on NASA's budget process in Congress and news from the

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50:37

Finding Wonder and Meaning in a Book by Carl Sagan’s...

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/30

Bill Nye says of Sasha Sagan’s new book, “Sagan finds the meaning of life everywhere—with her family, around the world, and especially among the stars of the cosmos. Read her work; you’ll have a deeper appreciation for your every step, every bite, and every breath.” Mat Kaplan talks with Sasha about For Small Creatures Such as We, and later joins Bruce Betts to offer the book in the new What’s Up space trivia contest. Learn more about this week’s guest and topics

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28:51

How Long Was Mars Wet?

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/23

Planetary scientist Briony Horgan and her team want to know how long liquid water flowed on the surface of the Red Planet before that world froze. Long enough for life to appear and thrive? New work comparing Earth’s extremes may have provided clues. There’s gas in space, and some of it is inside astronauts. Bruce Betts shares the uncomfortable truth in this week’s What’s Up. Also, space headlines from The Downlink. Learn more about this week’s guest and topics

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77:58

NASA’s Home for the Bleeding Edge: The 2019 NIAC...

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/16

The NASA Innovative Advanced Concepts program gathers its “fellows” each year to share what they’ve learned about some of the most fascinating science and engineering imaginable. Mat Kaplan visits with Program Executive Jason Derleth and seven leaders of funded studies.Astronaut Mae Jemison also attended and returns to Planetary Radio. Cosmonaut Alexei Leonov passed away last week at 85. He is remembered and praised by space historian John Logsdon.All this, headlines from The Downlink, and Bruce

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56:35

Space Policy Edition: Happy Fiscal New Year!

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/11

October 1st kicked off federal fiscal year 2020—a day that should also have kicked off a new budget for NASA. But Congress has not funded the space agency yet, instead passing a temporary stopgap measure to keep the government open until November 21st.Brendan Curry, The Planetary Society's Chief of D.C. Operations, joins the show to discuss the latest political developments in Washington, good news for planetary defense, and how the funding delay could spell trouble for the space agency's 2024 lunar

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47:08

Nobel Prize Winner Michel Mayor…and More

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/09

Astronomer and astrophysicist Michel Mayor has just been awarded the 2019 Nobel Prize for physics. Listen to Mat’s 2016 conversation with this revered scientist, the first to discover an exoplanet. The Beresheet mission’s Yoav Landsman recently visited Planetary Society HQ and spent a few minutes catching up with Mat.And Society Editorial Director Jason Davis introduces The Downlink, our weekly digest of planetary news. Bruce Betts takes us to a moon of Uranus to find the melancholy Dane. Learn more

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45:27

How to Defend Your Planet

Planetary Radio: Space Exploration, Astronomy and... ·

2019/10/02

Planetary scientist Vishnu Reddy studies space objects ranging from satellite debris to planet-killing asteroids.He shares the status of our effort to avoid the fate of the dinosaurs in a conversation with host Mat Kaplan. Did you know fruit flies were first in space? That’s just one of the random space facts you’ll absorb in this week’s What’s Up segment with Bruce. Learn more about this week’s guests and topics at:

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51:06

Ad Astra: The Movie!

Planetary Radio: Space Exploration, Astronomy and... ·

2019/09/25

Brad Pitt sets out across the solar system to save Earth in the new space epic. Host Mat Kaplan enjoys a far-reaching conversation with the co-screenwriter of Ad Astra that touches on the film’s meaning, the mythic journey of its protagonist, its spectacular images, and where it strays from known science. Registration for the Planetary Society’s 2020 Day of Action in Washington DC is open! Chief Advocate Casey Dreier has the lowdown. You might win a beautiful, rotating MOVA Earth globe in this

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67:45

How to Build a Starship: The 2019 Starship Congress

Planetary Radio: Space Exploration, Astronomy and... ·

2019/09/18

The biannual Starship Congress attracts starry-eyed believers in humankind’s destiny among the stars. We talk with several of them about their ideas for technologies and science that may help pave the way. Science fiction author David Brin dropped by the Congress and spends a few fun and speculative minutes with us. The September Equinox edition of The Planetary Report is ready for all to read. Editor Emily Lakdawalla gives us a sneak peek. The Milky Way has at least 54 satellite galaxies? Who knew

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49:00

The Unexpected Space Center: Los Alamos National...

Planetary Radio: Space Exploration, Astronomy and... ·

2019/09/11

This US research center has been part of more than 200 space missions, but it’s not a NASA facility! The Los Alamos National Laboratory in New Mexico gave the Voyager spacecraft their power sources, is building nuclear generators for future Martians, and accidentally invented the field of High Energy Astrophysics. That’s just some of what we’ll learn from Lab historian Alan Carr and longtime Lab astrophysicist Ed Fenimore. The Planetary Society’s Jason Davis has the latest news about India’s lunar

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109:14

Space Policy Edition: Why Apollo Ended (with John...

Planetary Radio: Space Exploration, Astronomy and... ·

2019/09/06

As NASA struggles to return humans to the Moon by 2024, it's worth asking: why did it stop in the first place? Space historian John Logsdon joins the show to discuss the politics behind the decision to abandon the Moon in 1972. Casey and Mat also discuss the proposal to offer a $2 billion prize for sending humans back to the Moon and establishing a base there, and why that's not good public policy. More resources about this month’s topics are at

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1,353 results

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