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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

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All Episodes

85:07

Space Policy Edition: Did NASA Ace its Midterms? With...

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

2018/09/07

We talk with planetary scientist and Lunar and Planetary Institute Director Louise Prockter, who co-led creation of a new report evaluating the performance of NASA's planetary science division. This comes five years after the release of the influential decadal survey. Given the massive budget cuts over the past few years, how did NASA do? Where do these reports come from and who puts them together? Why are they important? All will be answered in this month’s SPE! We also look into the

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80:09

Big Science, Big Rocket at the Marshall Space Flight...

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

2018/09/05

Mat Kaplan’s Huntsville, Alabama trip wraps up with a tour of the historic and history-making Marshall Space Flight Center. Join him at the control center for research underway on the International Space Station, under a tent where a critical component of the Space Launch System rocket is getting finishing touches, in a conversation about the Fermi spacecraft’s search for the universe’s biggest explosions, and with the Center’s Associate Director for Technical efforts. Then wrap up with Bruce Betts

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56:12

Space, Rockets, and a Senatorial Encounter in...

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

2018/08/29

Host Mat Kaplan begins a two-episode visit to Huntsville and the Marshall Space Flight Center, recorded this week at the US Space and Rocket Center with astronaut Don Thomas, 94-year-old Apollo engineer Alex McCool, and Alabama Senator Doug Jones. Bruce Betts sets us on a search for the nearest black hole in this week’s What’s Up space trivia contest. Learn and hear more at: http://www.planetary.org/multimedia/planetary-radio/show/2018/0829-2018-huntsville-doug-jones.htmlLearn more about your ad

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36:24

Pluto Occults! Join Us on the Mountain

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

2018/08/22

Pluto passed in front of a star on the evening of August 14. Mat Kaplan joined pro and amateur astronomers on a mountain to observe this rare event. It may reveal more about the dwarf planet’s tenuous atmosphere and other properties. Everyone hopes that Mars Exploration Rover Opportunity will phone home when the waning worldwide Martian dust storm allows the robot to charge its batteries. Digital Editor Jason Davis tells us about the online mistake that had some fans believing it had already

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55:55

Giving Mysterious Venus the Love (and Science) She...

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

2018/08/15

We have so much to learn about Venus, says JPL scientist Sue Smrekar. What we learn will help us understand our own world and Mars. Sue joins us this week to make a great case for a new Venus orbiter. The Parker Solar Probe has begun its exciting journey to “touch the Sun.” Our MaryLiz Bender talks with mission leaders before and after the launch. Bruce Betts and Mat Kaplan have two great space trivia contests to wrap up right after they take us on another What’s Up tour of the solar system and

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39:25

Dark Energy’s Co-Discoverer and the Leader of Chinese...

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

2018/08/08

It has been 20 years since we learned the expansion of the universe is accelerating due to the mysterious force called dark energy. Saul Perlmutter shared the Nobel Prize in Physics because of his contributions. Now he shares his thoughts with us. Also at this year’s COSPAR Assembly in Pasadena was the Director General of China’s National Space Science Center, Wang Chi. Have you played with Eyes on the Solar System? JPL’s Kevin Hussey conceived of the NASA Eyes app that will take you across the

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60:01

Space Policy Edition: Destination…Mars?...

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

2018/08/03

The Senate just held a hearing on NASA's efforts to send humans to...Mars? A week later, the same committee advanced legislation to extend the life of the International Space Station to 2030, six years beyond the current end-date and two years beyond the current hardware safety ratings. Does that extension undermine efforts to get to Mars? What about the Moon? Casey and Jason also introduce The Planetary Society's new principles for human spaceflight, which provide a framework by which the

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47:34

Diving Into That Lake on Mars

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

2018/08/01

Our world was rocked by last week’s announcement of good radar evidence for a liquid water “lake” under the Red Planet’s south pole. Senior Editor Emily Lakdawalla introduces us to the story that is then taken up by two of host Mat Kaplan’s favorite Martians. The Goddard Space Flight Center’s James Garvin headed NASA’s Mars exploration program, while NASA Ames astrobiologist Chris McKay co-founded the Mars Underground more than 35 years ago. Look up! Mars is still close by, and the Perseid

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53:21

Hayabusa2 Reaches a Dark Diamond in Space

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

2018/07/25

Japan’s Hayabusa2 is just 6 kilometers from asteroid Ryugu as it prepares to snatch samples of the space rock for return to Earth. ISAS/JAXA Director General and former Hayabusa Mission Project Manager Hitoshi Kuninaka joins us for a conversation about the spacecraft and what’s ahead. Then we hear from Hansjörg Dittus of the German Aerospace Center (DLR) about the German/French lander called MASCOT that was carried to Ryugu by Hayabusa2. Emily Lakdawalla is the new editor of the Planetary

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42:56

An African Observatory Hunts Killer Asteroids

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

2018/07/18

One of the Planetary Society’s 2018 Shoemaker Near-Earth Object grants has gone to astronomers searching the sky from a mountaintop in the North African nation of Morocco. Observer Michel Ory tells us about their work. Tim Spahr ran the Minor Planet Center for many years. He has moved from that worldwide coordinator for asteroid and comet discoveries to NEO Sciences LLC, and served once again as chair of the Shoemaker NEO judging committee. Wait till you hear what poor Yuri Gagarin had for lunch

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50:46

Something Old and Something New: Exciting Research on...

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

2018/07/11

Sextants have helped sailors find their way across oceans for centuries. Now one is onboard the International Space Station so that astronauts can learn to find their way across the solar system even if other technologies fail. Reaching the ISS on the same supply mission was the Cold Atom Lab. It may achieve the lowest temperatures in the universe, helping to unlock cosmic secrets. Every naked eye planet is visible! Bruce Betts will tell you where to look in What’s Up. Learn more about all our

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106:33

Space Policy Edition: Space Force! With Special Guest...

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

2018/07/06

The President recently ordered the creation of Space Force—but what does that mean? What are the implications for militarization of space? National security expert Dr. Brian Weeden joins the show to explain the announcement. Weeden also breaks down Space Policy Directive #3, which directs the Department of Commerce to begin tracking space debris and other potential dangers to spacecraft in Earth orbit. Casey, Jason and Mat take a detour to discuss the James Webb Space Telescope's latest breach,

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32:08

Dwarf Planet Ceres Thrills as a Dying Visitor Closes In

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

2018/07/04

Ceres is the queen of the asteroid belt. Her first Earthly visitor is nearing its last days in spectacular style. Dawn Mission Director and Chief Engineer Marc Rayman returns with stunning images taken from just 35 kilometers or 22 miles above the dwarf planet, and a preview of the spacecraft’s last days. Planetary Society Chief Scientist Bruce Betts has a summer guide to the night sky, looks back in space exploration history and delivers another Random Space Fact. He and Mat Kaplan also have a

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40:45

It’s Asteroid Week with NASA’s Planetary Defense Officer

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

2018/06/27

The dinosaurs regret their lack of a space program. 200 million years later, humans are gearing up to defend themselves from a species-ending rock. The many challenges involved are addressed in a new strategic action plan created by sixteen agencies of the US government. NASA’s Planetary Defense Officer, Lindley Johnson, and his associate, Kelly Fast, take us inside the plan. Planetary Society CEO Bill Nye the Science Guy applauds the growing worldwide attention to Near Earth Objects. By the

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45:51

Kathryn Sullivan, Space Dentistry and More at the...

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

2018/06/20

Freeman Dyson wasn’t the only space star at the ISDC. Mat talks with former astronaut and NOAA Administrator Kathryn Sullivan, leaders of the Cassini mission, innovative students and an expert on dental care in space. Keep flossing! Planetary Society Director of Space Policy Casey Dreier has the latest budget info from Washington and tells us about Space Policy Directive-3. Bruce and Mat have picked the name for the supermassive black hole that lurks at the center of the Milky Way galaxy. Who

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39:40

A Conversation with Freeman Dyson

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

2018/06/13

There’s so much more to Freeman Dyson than the Dyson Sphere. The mathematician, physicist, futurist and author is one of the greatest and most original minds of our era. He has much to say to Mat Kaplan about the future of space exploration and humanity in this week’s show. NASA has announced two exciting papers based on discoveries by Curiosity, the Mars Science Laboratory Rover. Emily Lakdawalla has the straight story. And we’ve got one more signed copy of “Chasing New Horizons” to give away

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48:59

It’s Rocket Science: Testing PlanetVac in the Mojave...

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

2018/06/06

Join Mat Kaplan in California’s Mojave Desert for special coverage of not one but two rocket flights and a real world test of PlanetVac, the innovative, radically simple way to collect surface samples from other worlds. PlanetVac replaced one foot of a Masten Space Systems Xodiac rocket for back-to-back hops across a test site. We also talk with Masten CEO Sean Mahoney. Planetary Society Chief Scientist Bruce Betts also made the trip. He’ll also open a super massive contest for PlanRad listeners

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71:49

Space Policy Edition: Space Policy Directive 2—This...

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

2018/06/01

President Trump just signed a new space policy directive targeting the regulations surrounding commercial spaceflight. Casey Dreier, Jason Davis and Mat Kaplan dive into the implications of the new directive and what it means for the relationship between government and space. They also break down all of the good news in the House's new funding bill for NASA, and highlight NASA Administrator Jim Bridenstine's turnaround on climate change. More resources to explore this month’s topics are at

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35:00

A Sacred Place: The National Air and Space Museum...

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

2018/05/30

Planetary geologist Ellen Stofan has just become Director of the most popular museum in the United States. The NASM protects and shares the greatest collection of space and aviation treasures on Earth. Mat Kaplan talks with the former NASA Chief Scientist about her new job and how the museum serves to inspire and inform millions each year. Senior editor Emily Lakdawalla prepares us for an exciting encounter between Japan’s Hayabusa 2 spacecraft and asteroid Ryugu. Harry Potter fans, rejoice!

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54:49

Chasing New Horizons to Pluto with Alan Stern and...

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

2018/05/23

The New Horizons mission was a triumph, revealing Pluto as an utterly unique and beautiful world. But the mission first had to survive challenge after challenge, fighting to be developed, meeting a nearly impossible launch deadline, and then narrowly avoiding disaster when it was barely a week from its destination. The entire dramatic tale has now been told by Principal Investigator Alan Stern and his co-author, astrobiologist David Grinspoon. They join Mat Kaplan to talk about their book, Chasing

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