Many missions are working to understand Mars' past habitability, but could there still be microbial life on the red planet today? This week on Planetary Radio, we discuss the proposed Mars Life Explorer mission with Amy Williams, assistant professor of geology at the University of Florida. Then Bruce Betts, the chief scientist of The Planetary Society, pops in for What's Up and a celebratory conversation about reestablishing contact with the beloved Voyager 2 spacecraft. Discover more at: https://www.planetary.org/planetary-radio/2023-mars-life-explorer See omnystudio.com/listener for privacy information.

Many missions are working to understand Mars' past habitability, but could there still be microbial life on the red planet today? This week on Planetary Radio, we discuss the proposed Mars Life Explorer mission with Amy Williams, assistant professor of geology at the University of Florida. Then Bruce Betts, the chief scientist of The Planetary Society, pops in for What's Up and a celebratory conversation about reestablishing contact with the beloved Voyager 2 spacecraft. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-mars-life-explorer" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-mars-life-explorer</a> See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Mars Life Explorer: The search for extant life on the red planet

Scott Pace, the prior executive secretary of the National Space Council, discusses why Artemis is of strategic value to U.S. national interests — and why the Moon is unique as a destination to drive global space exploration. Casey also discusses the latest congressional budgets news and what it means for NASA’s Mars Sample Return program. Note: the Space Policy Edition will go on hiatus for two months and return in November 2023. Discover more at: https://www.planetary.org/planetary-radio/lunar-exploration-enduring-national-interestSee omnystudio.com/listener for privacy information.

Scott Pace, the prior executive secretary of the National Space Council, discusses why Artemis is of strategic value to U.S. national interests — and why the Moon is unique as a destination to drive global space exploration. Casey also discusses the latest congressional budgets news and what it means for NASA’s Mars Sample Return program. Note: the Space Policy Edition will go on hiatus for two months and return in November 2023. Discover more at: <a href="https://www.planetary.org/planetary-radio/lunar-exploration-enduring-national-interest" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/lunar-exploration-enduring-national-interest</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Space Policy Edition: Why lunar exploration must be of enduring national interest

A decades-old lunar mystery gets an update in this week's Planetary Radio. Matt Siegler from the Planetary Science Institute shares his team's surprising findings about the granite formation that might lie beneath Compton-Belkovich, a thorium-rich hot spot on the far side of the Moon. Ambre Trujillo, Planetary Society Digital Community Manager, gives an update on the new member community app Space Trivia Contest, and Bruce Betts, chief scientist of The Planetary Society, shares What's Up in the night sky. Discover more at: https://www.planetary.org/planetary-radio/2023-subsurface-granite-on-the-moonSee omnystudio.com/listener for privacy information.

A decades-old lunar mystery gets an update in this week's Planetary Radio. Matt Siegler from the Planetary Science Institute shares his team's surprising findings about the granite formation that might lie beneath Compton-Belkovich, a thorium-rich hot spot on the far side of the Moon. Ambre Trujillo, Planetary Society Digital Community Manager, gives an update on the new member community app Space Trivia Contest, and Bruce Betts, chief scientist of The Planetary Society, shares What's Up in the night sky. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-subsurface" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-subsurface-granite-on-the-moon</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Subsurface granite on the Moon? The anatomy of a lunar hot spot

Phosphorus, a key ingredient for life on Earth, has been detected in the ocean of Saturn's moon Enceladus. This discovery marks the first time phosphorus has been found in an ocean off of Earth. Chris Glein, a lead scientist at the Southwest Research Institute, joins Planetary Radio to talk about the discovery and its implications for the search for life. Then Bruce Betts shares what's up in the night sky this week. Discover more at: https://www.planetary.org/planetary-radio/2023-phosphorus-in-enceladus See omnystudio.com/listener for privacy information.

Phosphorus, a key ingredient for life on Earth, has been detected in the ocean of Saturn's moon Enceladus. This discovery marks the first time phosphorus has been found in an ocean off of Earth. Chris Glein, a lead scientist at the Southwest Research Institute, joins Planetary Radio to talk about the discovery and its implications for the search for life. Then Bruce Betts shares what's up in the night sky this week. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-phosphorus-in-enceladus" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-phosphorus-in-enceladus</a> See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

An essential ingredient for life in the oceans of Enceladus

The gullies of Mars may appear similar to water-carved channels on Earth, but their formation is more complex than meets the eye. Caltech's Jay Dickson joins Planetary Radio to discuss the planet’s changing axial tilt and the consequences of Martian climate change. Then Bruce Betts shares the beautiful dance of planets in the upcoming night sky and the reflections of the oldest person to ever travel to space. Discover more at: https://www.planetary.org/planetary-radio/2023-mars-gulliesSee omnystudio.com/listener for privacy information.

The gullies of Mars may appear similar to water-carved channels on Earth, but their formation is more complex than meets the eye. Caltech's Jay Dickson joins Planetary Radio to discuss the planet’s changing axial tilt and the consequences of Martian climate change. Then Bruce Betts shares the beautiful dance of planets in the upcoming night sky and the reflections of the oldest person to ever travel to space. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-mars-gullies" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-mars-gullies</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Mars' Axial Tilt: A Key to Gully Formation

Get ready for a journey across the rivers of our Solar System in this week's Planetary Radio. Sam Birch, an assistant professor at Brown University, explores what we know about the alluvial rivers of Earth, Mars, and Saturn’s moon Titan. Stay tuned for the What's Up segment with Bruce Betts and the last question in our on-air space trivia contest. Discover more at: https://www.planetary.org/planetary-radio/2023-rivers-of-earth-mars-and-titan See omnystudio.com/listener for privacy information.

Get ready for a journey across the rivers of our Solar System in this week's Planetary Radio. Sam Birch, an assistant professor at Brown University, explores what we know about the alluvial rivers of Earth, Mars, and Saturn’s moon Titan. Stay tuned for the What's Up segment with Bruce Betts and the last question in our on-air space trivia contest. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-rivers-or-Earth-Mars-and-Titan" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-rivers-of-earth-mars-and-titan</a> See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Comparing the rivers of Earth, Mars, and Titan

We check in on the congressional budget process for NASA, Mars Sample Return’s spiraling cost growth, and the impending end of the regulatory holiday for human commercial space launch companies. Jack Kiraly, director of government relations for The Planetary Society, joins host Casey Dreier to provide the latest insight and analysis on these issues. Discover more at: https://www.planetary.org/planetary-radio/summer-2023-congressional-statusSee omnystudio.com/listener for privacy information.

We check in on the congressional budget process for NASA, Mars Sample Return’s spiraling cost growth, and the impending end of the regulatory holiday for human commercial space launch companies. Jack Kiraly, director of government relations for The Planetary Society, joins host Casey Dreier to provide the latest insight and analysis on these issues. Discover more at: <a href="https://www.planetary.org/planetary-radio/summer-2023-congressional-status" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/summer-2023-congressional-status</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Space Policy Edition: What’s Going on with: Congress, MSR, and ?

It's going to take a lot of collaboration to get humans to Mars, but we're up for the challenge. This week on Planetary Radio, Mat Kaplan, senior communications adviser at The Planetary Society, takes us to the 2023 Humans to Mars Summit in Washington, D.C. We'll share his conversation with three NASA Associate Administrators, Nicola Fox, James Free, and James Reuter about the international, commercial, and robotic collaboration it will take to put the first humans on the Red Planet. Then Bruce Betts and Sarah Al-Ahmed share What's Up in the night sky and a chance to win a grab bag of prizes in one of our last space trivia contests. Discover more at: https://www.planetary.org/planetary-radio/2023-humans-to-mars See omnystudio.com/listener for privacy information.

It's going to take a lot of collaboration to get humans to Mars, but we're up for the challenge. This week on Planetary Radio, Mat Kaplan, senior communications adviser at The Planetary Society, takes us to the 2023 Humans to Mars Summit in Washington, D.C. We'll share his conversation with three NASA Associate Administrators, Nicola Fox, James Free, and James Reuter about the international, commercial, and robotic collaboration it will take to put the first humans on the Red Planet. Then Bruce Betts and Sarah Al-Ahmed share What's Up in the night sky and a chance to win a grab bag of prizes in one of our last space trivia contests. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-humans-to-mars" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-humans-to-mars</a> See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Humans to Mars by the 2030s? NASA Associate Administrators weigh in

Some solar mysteries, like the origin of the fast solar wind, can only be solved by getting up close and personal with the Sun. James Drake from the University of Maryland joins Planetary Radio this week to talk about the latest results from NASA's Parker Solar Probe as it soars closer to our star than any spacecraft in history. We share what to look forward to in the night sky and a Parker Solar Probe-themed question in our space trivia contest. Discover more at: https://www.planetary.org/planetary-radio/2023-fast-solar-windSee omnystudio.com/listener for privacy information.

Some solar mysteries, like the origin of the fast solar wind, can only be solved by getting up close and personal with the Sun. James Drake from the University of Maryland joins Planetary Radio this week to talk about the latest results from NASA's Parker Solar Probe as it soars closer to our star than any spacecraft in history. We share what to look forward to in the night sky and a Parker Solar Probe-themed question in our space trivia contest. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-fast-solar-wind" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-fast-solar-wind</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

2Fast 2Curious: Finding the source of the fast solar wind

Saturn's rings are so young that they may have formed when dinosaurs walked the Earth. Richard Durisen, a Professor Emeritus of Astronomy from Indiana University Bloomington, and Paul Estrada, a Research Scientist at NASA Ames Research Center, join Planetary Radio to discuss their research on the surprisingly recent formation of Saturn's rings and why they are disappearing over time. Then Bruce Betts and host Sarah Al-Ahmed share what's in the upcoming night sky and chat about creepy-crawly constellations. Discover more at: https://www.planetary.org/planetary-radio/2023-saturn-young-ringsSee omnystudio.com/listener for privacy information.

Saturn's rings are so young that they may have formed when dinosaurs walked the Earth. Richard Durisen, a Professor Emeritus of Astronomy from Indiana University Bloomington, and Paul Estrada, a Research Scientist at NASA Ames Research Center, join Planetary Radio to discuss their research on the surprisingly recent formation of Saturn's rings and why they are disappearing over time. Then Bruce Betts and host Sarah Al-Ahmed share what's in the upcoming night sky and chat about creepy-crawly constellations. Discover more at: <a href="https://www.planetary.org/planetary-radio/2023-saturns-young-rings" rel="nofollow" target="_blank">https://www.planetary.org/planetary-radio/2023-saturn-young-rings</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

The disappearing act of Saturn's young rings

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 Mat Kaplan and Planetary Society colleagues including Bill Nye the Science Guy, Bruce Betts, and Emily Lakdawalla as they dive deep into the latest space news. 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 the space trivia contest, an episode guide, and much more.

Growing up my dad would always look up into the sky and tried to get us involved with his telescope hobby. Unfortunately it was not until I grew up that I appreciated his hobbies. 
Planetary Radio ignited a fascination with space exploration that cannot be quenched on this planet. I enjoy listening to Matt Kaplan’s interviews with heavy hitters in the space industry, and I look forward to Dr. Bruce Betts’ weekly jokes and what’s up!

Ignited my fascination with Space!

Thanks for the weekly podcast, I now plan on joining the planetary society!

Fun & Educational

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 Mat Kaplan and Planetary Society colleagues including Bill Nye the Science Guy, Bruce Betts, and Emily Lakdawalla as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit <a href="http://planetary.org/radio" rel="nofollow" target="_blank">planetary.org/radio</a> for the space trivia contest, an episode guide, and much more.

Planetary Radio: Space Exploration, Astronomy and Science

They are the most neglected planets in our solar system, but that status may be changing. Planetary scientist Elizabeth “Zibi” Turtle celebrates NASA’s announcement that it will study a mission to Uranus or Neptune.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

They are the most neglected planets in our solar system, but that status may be changing. Planetary scientist Elizabeth “Zibi” Turtle celebrates NASA’s announcement that it will study a mission to Uranus or Neptune.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Zibi Turtle and a Mission to the Ice Giants

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 paper about the new world. TESS, the Transiting Exoplanet Survey Satellite, played a key role in its discovery. MIT planetary scientist and astrophysicist Sara Seager returns to tell us about this powerful tool and more. We also visit with the leader of NASA heliophysics research as she awaits launch of the Solar Orbiter. Look out! The rubber asteroids are back on What’s Up!  Learn more and enter the contest at https://www.planetary.org/multimedia/planetary-radio/show/2020/0212-2020-tess-toi700d-seager-gilbert.htmlSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

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 paper about the new world. TESS, the Transiting Exoplanet Survey Satellite, played a key role in its discovery. MIT planetary scientist and astrophysicist Sara Seager returns to tell us about this powerful tool and more. We also visit with the leader of NASA heliophysics research as she awaits launch of the Solar Orbiter. Look out! The rubber asteroids are back on What’s Up!  Learn more and enter the contest at <a href="https://www.planetary.org/multimedia/planetary-radio/show/2020/0212-2020-tess-toi700d-seager-gilbert.html" rel="nofollow" target="_blank">https://www.planetary.org/multimedia/planetary-radio/show/2020/0212-2020-tess-toi700d-seager-gilbert.html</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Another Goldilocks World and the Space Telescope That Discovered It

NASA scientist Harley Thronson tells us about a new initiative that is figuring out how we will get men and women to the red planet at a reasonable price. You can read their initial report. Emily Lakdawalla reports on Curiosity’s passage over dunes that made engineers nervous. Bill Nye reveals NASA’s plans for a lunar rover that may launch in 2018. Mat Kaplan joins Bruce Betts in a TV studio to record this week’s What’s Up segment. You can watch!Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

NASA scientist Harley Thronson tells us about a new initiative that is figuring out how we will get men and women to the red planet at a reasonable price. You can read their initial report. Emily Lakdawalla reports on Curiosity’s passage over dunes that made engineers nervous. Bill Nye reveals NASA’s plans for a lunar rover that may launch in 2018. Mat Kaplan joins Bruce Betts in a TV studio to record this week’s What’s Up segment. You can watch!Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Getting Humans to Mars Without Breaking the Bank

Astronomers Jay Pasachoff and Alex Filippenko join us for a conversation about their newest version of their monumental textbook, "The Cosmos." Emily Lakdawalla helps us say good morning to the just-awakened Rosetta spacecraft, while Bill Nye is fascinated and puzzled by what looks like a jelly doughnut on the Martian surface.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Astronomers Jay Pasachoff and Alex Filippenko join us for a conversation about their newest version of their monumental textbook, "The Cosmos." Emily Lakdawalla helps us say good morning to the just-awakened Rosetta spacecraft, while Bill Nye is fascinated and puzzled by what looks like a jelly doughnut on the Martian surface.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

From Earth to the Edge of the Universe: A New Edition of “The Cosmos”

New research indicates that globular clusters—collections of up to a million stars—could provide stable environments for life, along with opportunities for interstellar civilizations. Lead author Rosanne Di Stefano joins us to explain.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

New research indicates that globular clusters—collections of up to a million stars—could provide stable environments for life, along with opportunities for interstellar civilizations. Lead author Rosanne Di Stefano joins us to explain.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Civilizations Among the Clustered Stars?

Joe Liske, host of Hubblecast, is also the top scientist on the European Southern Observatory’s European Extremely Large Telescope (E-ELT), now under construction on a Chilean mountaintop. “Dr. J” tells us what this largest ever telescope will help us discover.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Joe Liske, host of Hubblecast, is also the top scientist on the European Southern Observatory’s European Extremely Large Telescope (E-ELT), now under construction on a Chilean mountaintop. “Dr. J” tells us what this largest ever telescope will help us discover.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Dr. J and the World’s Biggest Telescope

Sean Solomon

We open with the countdown to destruction—the MESSENGER spacecraft’s impact on Mercury ended its spectacularly successful mission.  Principal Investigator Sean Solomon joins us immediately after this big finish.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

We open with the countdown to destruction—the MESSENGER spacecraft’s impact on Mercury ended its spectacularly successful mission. Principal Investigator Sean Solomon joins us immediately after this big finish.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Sean Solomon on the Climactic End of the MESSENGER Mission to Mercury

Chris Carberry

Explore Mars revealed the 2015 Humans to Mars Report at a recent conference in Washington. CEO Chris Carberry gives us a quick tour of this inspiring assessment of what it will take to get more than robots to the Red Planet.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Explore Mars revealed the 2015 Humans to Mars Report at a recent conference in Washington. CEO Chris Carberry gives us a quick tour of this inspiring assessment of what it will take to get more than robots to the Red Planet.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Chris Carberry and Getting Humans to Mars

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 Investigator Dante Lauretta prepares us for this exciting event and shares the great science already accomplished. Editorial Director Jason Davis stops by with a report on the successful test by SpaceX of its Crew Dragon escape system. Are we finally about to see astronauts using it to reach the International Space Station? Learn more and enter the weekly What’s Up space trivia contest at https://www.planetary.org/multimedia/planetary-radio/show/2020/0122-2020-dante-lauretta-osiris-rex.htmlSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

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 Investigator Dante Lauretta prepares us for this exciting event and shares the great science already accomplished. Editorial Director Jason Davis stops by with a report on the successful test by SpaceX of its Crew Dragon escape system. Are we finally about to see astronauts using it to reach the International Space Station? Learn more and enter the weekly What’s Up space trivia contest at <a href="https://www.planetary.org/multimedia/planetary-radio/show/2020/0122-2020-dante-lauretta-osiris-rex.html" rel="nofollow" target="_blank">https://www.planetary.org/multimedia/planetary-radio/show/2020/0122-2020-dante-lauretta-osiris-rex.html</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

The Coming Descent to Asteroid Bennu

Where is everybody? That was the question physicist Enrico Fermi asked when he wondered why we hadn’t yet met ET. What will happen if we do? Will humans lose the will to explore?Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Where is everybody? That was the question physicist Enrico Fermi asked when he wondered why we hadn’t yet met ET. What will happen if we do? Will humans lose the will to explore?Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Space, SETI, the Singularity and Shostak

Come with us on a visit to the home of the prime meridian for a conversation with the curator of the Royal Observatory, Greenwich about the race to create a practical means for determining longitude.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Come with us on a visit to the home of the prime meridian for a conversation with the curator of the Royal Observatory, Greenwich about the race to create a practical means for determining longitude.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

The Royal Observatory, Greenwich and the Quest for Longitude

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. Principal investigator Scott Bolton shows us the mysterious cyclones at its poles and that famously persistent red spot. Casey Dreier says the United States House of Representatives has proposed legislation that is at odds with NASA’s current Moon and Mars plans. John Flamsteed almost discovered Uranus! Bruce Betts will tell us where he went wrong in this week’s What’s Up space trivia contest. Learn more and enter the contest at https://www.planetary.org/multimedia/planetary-radio/show/2020/0115-2020-scott-bolton-juno.htmlSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

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. Principal investigator Scott Bolton shows us the mysterious cyclones at its poles and that famously persistent red spot. Casey Dreier says the United States House of Representatives has proposed legislation that is at odds with NASA’s current Moon and Mars plans. John Flamsteed almost discovered Uranus! Bruce Betts will tell us where he went wrong in this week’s What’s Up space trivia contest. Learn more and enter the contest at <a href="https://www.planetary.org/multimedia/planetary-radio/show/2020/0115-2020-scott-bolton-juno.html" rel="nofollow" target="_blank">https://www.planetary.org/multimedia/planetary-radio/show/2020/0115-2020-scott-bolton-juno.html</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Mighty Jupiter Revealed

We have begun to understand the composition of worlds that are hundreds of trillions of kilometers from Earth. Astronomer Nikole Lewis is co-leader of a team that has used the Hubble Space Telescope to do this with the four Earth-like planets circling a star called TRAPPIST-1. Host Mat Kaplan talks with Digital Editor Jason Davis about a new probe designed to discover thousands of additional exoplanets.  Want to win a Planetary Radio t-shirt? Answer this week’s space trivia question posed by Planetary Society Chief Scientist Bruce Betts. Learn more about this week’s topics and see images here: http://www.planetary.org/multimedia/planetary-radio/show/2018/0411-nikole-lewis-trappist-worlds.htmlLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

We have begun to understand the composition of worlds that are hundreds of trillions of kilometers from Earth. Astronomer Nikole Lewis is co-leader of a team that has used the Hubble Space Telescope to do this with the four Earth-like planets circling a star called TRAPPIST-1. Host Mat Kaplan talks with Digital Editor Jason Davis about a new probe designed to discover thousands of additional exoplanets.  Want to win a Planetary Radio t-shirt? Answer this week’s space trivia question posed by Planetary Society Chief Scientist Bruce Betts. Learn more about this week’s topics and see images here: <a href="http://www.planetary.org/multimedia/planetary-radio/show/2018/0411-nikole-lewis-trappist-worlds.htmlLearn" rel="nofollow" target="_blank">http://www.planetary.org/multimedia/planetary-radio/show/2018/0411-nikole-lewis-trappist-worlds.htmlLearn</a> more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Visiting the Earth-Like Worlds of TRAPPIST-1

Mike Brown and Konstantin Batygin fully expect a new and undemotable ninth planet will be found in the outer reaches of the solar system. The Caltech researchers talk about their findings and much more.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Mike Brown and Konstantin Batygin fully expect a new and undemotable ninth planet will be found in the outer reaches of the solar system. The Caltech researchers talk about their findings and much more.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Planet 9 From Outer Space!

SETI Institute scientist Jason Rowe returns to tell us about the smallest exoplanet so far that has had its size and mass determined. Jason also talks with Mat about our ever-expanding knowledge of these worlds that circle faraway stars.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

SETI Institute scientist Jason Rowe returns to tell us about the smallest exoplanet so far that has had its size and mass determined. Jason also talks with Mat about our ever-expanding knowledge of these worlds that circle faraway stars.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

A Small, Distant World: Kepler 138b

Marc Rayman

It’s the biggest dwarf planet between here and Pluto, and it has a new permanent resident. The Dawn spacecraft is orbiting Ceres in the asteroid belt, revealing it as never before. What are those bright spots anyway? We spend time with Dawn’s Chief Engineer and Director, Marc Rayman.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

It’s the biggest dwarf planet between here and Pluto, and it has a new permanent resident. The Dawn spacecraft is orbiting Ceres in the asteroid belt, revealing it as never before. What are those bright spots anyway? We spend time with Dawn’s Chief Engineer and Director, Marc Rayman.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Spiraling Closer to Ceres With the Dawn Mission’s Marc Rayman

Cheryl Nickerson

You may have heard that the sometimes deadly Salmonella bacterium becomes stronger in microgravity. Cheryl Nickerson tell us about this and other results her team has conducted in low Earth orbit.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

You may have heard that the sometimes deadly Salmonella bacterium becomes stronger in microgravity. Cheryl Nickerson tell us about this and other results her team has conducted in low Earth orbit.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Microbes in Orbit: Cheryl Nickerson’s Revealing Biomedical Research

Jim Bell

Planetary scientist and author Jim Bell has just written “The Interstellar Age—Inside the Forty-Year Voyager Mission.” He talks with Mat Kaplan about the magnificent grand tour of the outer solar system that is now headed toward the stars.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Planetary scientist and author Jim Bell has just written “The Interstellar Age—Inside the Forty-Year Voyager Mission.” He talks with Mat Kaplan about the magnificent grand tour of the outer solar system that is now headed toward the stars.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Jim Bell Welcomes “The Interstellar Age”

Astrobiology is the discipline that explores the origin of life in the universe, and whether life exists anywhere other than Earth. It’s an increasingly exciting field according to University of Washington Research Associate Michael Wong. Mike reviews the current thinking and provides some of the chemical basis for life as we know it, and possibly as we don’t know it. Planetary Society Senior Editor Emily Lakdawalla explains why we don’t see stars in many images of bodies across the solar system, while Society CEO Bill Nye marks the end of the US government shutdown that has hampered so much science. Five more winners will receive copies of First Man in this week’s What’s Up space trivia contest. Learn more at:  http://www.planetary.org/multimedia/planetary-radio/show/2019/0130-2019-michael-wong-life-origin.htmlLearn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Astrobiology is the discipline that explores the origin of life in the universe, and whether life exists anywhere other than Earth. It’s an increasingly exciting field according to University of Washington Research Associate Michael Wong. Mike reviews the current thinking and provides some of the chemical basis for life as we know it, and possibly as we don’t know it. Planetary Society Senior Editor Emily Lakdawalla explains why we don’t see stars in many images of bodies across the solar system, while Society CEO Bill Nye marks the end of the US government shutdown that has hampered so much science. Five more winners will receive copies of First Man in this week’s What’s Up space trivia contest. Learn more at:  <a href="http://www.planetary.org/multimedia/planetary-radio/show/2019/0130-2019-michael-wong-life-origin.htmlLearn" rel="nofollow" target="_blank">http://www.planetary.org/multimedia/planetary-radio/show/2019/0130-2019-michael-wong-life-origin.htmlLearn</a> more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

Where Do We Come From? The Origin of Life

Our annual review of the greatest events and accomplishments over the last year features analysis and commentary by Bill Nye the Science Guy, Emily Lakdawalla, Jason Davis, Casey Dreier and Bruce Betts, along with a special new year’s gift of Neil deGrasse Tyson.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Our annual review of the greatest events and accomplishments over the last year features analysis and commentary by Bill Nye the Science Guy, Emily Lakdawalla, Jason Davis, Casey Dreier and Bruce Betts, along with a special new year’s gift of Neil deGrasse Tyson.Learn more about your ad choices. Visit <a href="http://megaphone.fm/adchoices" rel="nofollow" target="_blank">megaphone.fm/adchoices</a>See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.See <a href="https://omnystudio.com/listener" rel="nofollow" target="_blank">omnystudio.com/listener</a> for privacy information.

2014: The Year in Space

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