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 astrophysicist Avi Loeb in his new book Extraterrestrial. The book is about much more than ‘Oumuamua, and so is Avi’s conversation with Mat Kaplan. Bill Nye pays tribute to a fallen member of The Planetary Society’s space family, and the biggest coincidence in the history of Planetary Radio surfaces during What’s Up.There’s more to discover, including a link to Planetfest ’21, at https://www.planetary.org/planetary-radio/0127-2021-avi-loeb-extraterrestrial

See omnystudio.com/listener for privacy information.

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 astrophysicist Avi Loeb in his new book Extraterrestrial. The book is about much more than ‘Oumuamua, and so is Avi’s conversation with Mat Kaplan. Bill Nye pays tribute to a fallen member of The Planetary Society’s space family, and the biggest coincidence in the history of Planetary Radio surfaces during What’s Up.There’s more to discover, including a link to Planetfest ’21, at <a href="https://www.planetary.org/planetary-radio/0127-2021-avi-loeb-extraterrestriall" rel="noopener noreferrer" target="_blank">https://www.planetary.org/planetary-radio/0127-2021-avi-loeb-extraterrestrial</a>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

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 DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

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 DC beltway where the future of the US space program hangs in the balance. Visit planetary.org/radio for an episode guide and much more.

Planetary Radio: Space Exploration, Astronomy and Science

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 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, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

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 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, chief scientist for The Planetary Society, as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway with Casey Dreier and Jack Kiraly to discuss the politics of space exploration in the US and advocacy actions you can take to support the missions that matter. Visit planetary.org/radio for the space trivia contest, an episode guide, and much more.

‘Oumuamua: Avi Loeb says it may have been artificial

This is part two of our Star Trek 60th anniversary series. Robert Picardo, the Emergency Medical Hologram on Star Trek: Voyager and a member of The Planetary Society's board of directors, reads a vintage letter from Star Trek creator Gene Roddenberry asking fans to join a brand new organization called The Planetary Society. Tim Russ, who played Tuvok on Star Trek: Voyager, Deep Space Nine, Lower Decks, and Picard, joins us to talk about what the Vulcans can teach us about the discipline we'll need to survive in deep space, and shares his own experience as an amateur astronomer who contributed data to NASA's Lucy mission. Karim Diané, Jay-Den Kraag on Star Trek: Starfleet Academy, talks about playing a Klingon who defies everyone's expectations of what it means to be strong. And Bruce Betts, chief scientist of The Planetary Society, is here with What's Up, discussing Star Trek technologies.

Discover more at: https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-2

This is part two of our Star Trek 60th anniversary series. Robert Picardo, the Emergency Medical Hologram on Star Trek: Voyager and a member of The Planetary Society's board of directors, reads a vintage letter from Star Trek creator Gene Roddenberry asking fans to join a brand new organization called The Planetary Society. Tim Russ, who played Tuvok on Star Trek: Voyager, Deep Space Nine, Lower Decks, and Picard, joins us to talk about what the Vulcans can teach us about the discipline we'll need to survive in deep space, and shares his own experience as an amateur astronomer who contributed data to NASA's Lucy mission. Karim Dian&eacute;, Jay-Den Kraag on Star Trek: Starfleet Academy, talks about playing a Klingon who defies everyone's expectations of what it means to be strong. And Bruce Betts, chief scientist of The Planetary Society, is here with What's Up, discussing Star Trek technologies.
Discover more at: <a href="https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-2">https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-2</a>

In part two of our Star Trek 60th anniversary series, Tim Russ, Tuvok from Star Trek: Voyager, and Karim Diané, Jay-Den Kraag from Star Trek: Starfleet Academy, explore what the Vulcans and the Klingons can teach us about becoming the people who deserve to reach the stars. 

Star Trek at 60: What Vulcans and Klingons can teach us about being human (Part 2)

Star Trek turned 60 on Sept. 8, 2026, and to celebrate, we're kicking off a special two-part series exploring the franchise's deep and lasting connection to real-world space exploration. In Part 1, Robert Picardo, the Emergency Medical Hologram from Star Trek: Voyager, now starring in Star Trek: Starfleet Academy and a member of The Planetary Society's Board of Directors, joins Sarah Al-Ahmed to trace the relationship between Star Trek and The Planetary Society all the way back to a 1980 letter from Gene Roddenberry himself. Bob talks about how playing a holographic doctor for 30 years led him to become a real-world space advocate, and what Star Trek's non-human characters can teach us about what it means to be human. Then, Bruce Betts, Planetary Society Chief Scientist, joins for What's Up and a discussion of solar sails in the franchise.

Discover more at: https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-1

Star Trek turned 60 on Sept. 8, 2026, and to celebrate, we're kicking off a special two-part series exploring the franchise's deep and lasting connection to real-world space exploration. In Part 1, Robert Picardo, the Emergency Medical Hologram from Star Trek: Voyager, now starring in Star Trek: Starfleet Academy and a member of The Planetary Society's Board of Directors, joins Sarah Al-Ahmed to trace the relationship between Star Trek and The Planetary Society all the way back to a 1980 letter from Gene Roddenberry himself. Bob talks about how playing a holographic doctor for 30 years led him to become a real-world space advocate, and what Star Trek's non-human characters can teach us about what it means to be human. Then, Bruce Betts, Planetary Society Chief Scientist, joins for What's Up and a discussion of solar sails in the franchise.
Discover more at: <a href="https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-1">https://www.planetary.org/planetary-radio/2026-star-trek-at-60-part-1</a>

Robert Picardo, the Emergency Medical Hologram from Star Trek: Voyager and now Starfleet Academy, traces the sixty-year bond between Star Trek and The Planetary Society, from Gene Roddenberry's 1980 letter to the halls of Congress. 

Star Trek at 60: What do we value the most? (Part 1)

We tend to think of private space exploration as a recent phenomenon. But as Alex MacDonald, former Chief Economist at NASA, argues in his book "The Long Space Age," privately funded space exploration has deep roots in American history, stretching back more than two centuries.

In this 2017 conversation with The Planetary Society's Chief of Space Policy Casey Dreier, originally aired on the Space Policy Edition of Planetary Radio, MacDonald traces the economic history of American space exploration from the 1769 transit of Venus all the way to the present day, and makes the case that the government-dominated model we grew up with may actually be the historical anomaly.

Discover more at: https://www.planetary.org/planetary-radio/long-space-age

We tend to think of private space exploration as a recent phenomenon. But as Alex MacDonald, former Chief Economist at NASA, argues in his book "The Long Space Age," privately funded space exploration has deep roots in American history, stretching back more than two centuries.
In this 2017 conversation with The Planetary Society's Chief of Space Policy Casey Dreier, originally aired on the Space Policy Edition of Planetary Radio, MacDonald traces the economic history of American space exploration from the 1769 transit of Venus all the way to the present day, and makes the case that the government-dominated model we grew up with may actually be the historical anomaly.
Discover more at: <a href="https://www.planetary.org/planetary-radio/long-space-age">https://www.planetary.org/planetary-radio/long-space-age</a>

Alex MacDonald, former Chief Economist at NASA and author of "The Long Space Age," joins Casey Dreier to explore more than two centuries of privately funded space exploration in America.

‘Oumuamua: Avi Loeb says it may have been artificial

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