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For every week since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate or writer who provides a unique perspective on the quest for knowledge about our solar system and beyond. We also showcase regular features that raise your space IQ while they put a smile on your face.

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Big News From Little Worlds

March 24, 2015 • 28:50

Senior Editor Emily Lakdawalla has returned from the Lunar and Planetary Science Conference in Texas with the latest revelations about our solar system. She shares them in an extended report.

Virgin Galactic CEO George Whitesides on LauncherOne and the Return of SpaceShipTwo

March 10, 2015 • 28:50

6,000 job-seekers came to the new Long Beach, California home of Virgin Galactic’s LauncherOne rocket on a recent morning. We sit down with CEO George Whitesides for a conversation about this new effort and the return of SpaceShipTwo.

Jim Bell Welcomes “The Interstellar Age”

March 03, 2015 • 46:07

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.

Jonathan Goff Says Let’s Redirect an Asteroid

February 24, 2015 • 28:50

ARM is the Asteroid Redirect Mission, and sometimes it seems that it doesn’t have a friend in the world. But it does, and Jonathan Goff of Altius Space Machines is one.

Year of the Icy Worlds

February 10, 2015 • 28:50

We’ll visit the Jet Propulsion Lab on its Icy Worlds Day to learn more about spacecraft exploring Ceres, Enceladus and Europa from leaders of these missions.

Tales From a 4 Billion Year Old Piece of Mars...On Earth

February 03, 2015 • 28:50

Robina Shaheen and Mark Thiemens tell us how an ancient Mars meteorite has revealed much about the red planet. Mat holds a tiny fragment of the rock in their UC San Diego lab.

The Exciting Year Ahead on the Final Frontier

January 06, 2015 • 28:50

The Planetary Society’s experts look forward to a great year of firsts in the solar system and beyond.

Yale’s Debra Fischer and the Ever More Precise Search for New Worlds

October 14, 2014 • 28:50

It’s terribly hard to find exoplanets that look like our homeworld. The search requires development of astoundingly powerful and precise instruments. That’s the job Debra Fischer and her team have taken on.

Dr. Bell Goes to Washington

September 16, 2014 • 28:50

Planetary Scientist Jim Bell of Arizona State University joined other experts in front of the US House of Representatives Space Committee on September 10th. Get his report this week.

Miguel Alcubierre, Inventor of Warp Drive?

September 09, 2014 • 28:50

Inspired by Star Trek, distinguished physicist Miguel Alcubierre developed the general relativity-based model for warp drive 20 years ago. Hear why he doubts it will ever be a reality, and learn about his current research on gravitational waves.

At Spacefest VI With Apollo Astronaut Gene Cernan and a Host of Proud Space Geeks

May 27, 2014 • 34:47

Planetary Radio visited Spacefest in Pasadena to talk with planetary scientist and space artist Dan Durda, Marc Rayman of the Dawn asteroid mission, and a guy who calls himself the Space Cowboy. We also eavesdrop on Apollo 17 Commander Gene Cernan and his lifelong fan, Griffith Observatory Curator Laura Danly.

A Second Earth, and OSIRIS REx is Go for Asteroid Bennu

April 22, 2014 • 28:50

Finally found: an Earth-sized planet in the habitable zone. You’ll hear lead scientist Elisa Quintana make the announcement. Then OSIRIS REx mission Principal Investigator Dante Lauretta will tell us how the spacecraft will return a sample of material from the birth of the solar system.

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

January 21, 2014 • 30:50

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.

A 2014 Preview From Emily Lakdawalla

January 06, 2014 • 28:50

24 spacecraft are either busy exploring the solar system or speeding toward an exciting destination. The Planetary Society's Senior Editor takes us on a whirlwind advance tour.

Amy Mainzer Is Hunting Asteroids With NEOWISE

December 30, 2013 • 34:11

Take a spacecraft that can no longer survey the realm of galaxies and repurpose it to discover thousands of much nearer asteroids and comets. Put it to sleep for 2.5 years, then wake it up and start discovering even more! JPL’s Amy Mainzer is Principal Investigator for NEOWISE, the mission using this amazing space telescope.

Emily Lakawalla's DPS Report

October 14, 2013 • 28:50

The Planetary Society’s Senior Editor and Planetary Evangelist recaps this year’s revealing meeting of the Division for Planetary Sciences (DPS).

Tim Spahr of the Minor Planet Center

July 08, 2013 • 28:50

There’s a place to go when you find a space rock headed our way, or headed any which way. Tim Spahr directs the Minor Planet Center, the global clearinghouse for all information about asteroids, comets and other relatively small bodies like moons.

Advocating for Planetary Science/Star Trek Meets Spacefarers

May 20, 2013 • 30:45

The director and cast of Star Trek: Into Darkness meet up with real space travelers. Also: Planetary science funding from NASA is in trouble, so a delegation led by Bill Nye the Science Guy descended on Washington DC last week to sound the alarm. Planetary Society Advocacy chief Casey Dreier provides a report, and comments on the Society’s support for NASA’s Asteroid Retrieval Mission.

Saving Earth: Asteroid Emergency Tabletop Exercise at the 2013 PDC

May 06, 2013 • 41:37

The last installment of our Planetary Defense Conference coverage makes a deep impact as hundreds of attendees participate in an asteroid mitigation exercise. You’ll hear from astronauts Ed Lu and Rusty Schweikart, Near Earth Object expert Don Yeomans, Cathy Plesko of the Los Alamos National Laboratory and many more.

Kindred Spirits: Alison Gibbings and Carolyn Shoemaker at the Planetary Defense Conference

April 29, 2013 • 28:50

Our special coverage of the PDC continues with two planetary scientists separated by almost 60 years in age, but with similar dedication and enthusiasm for saving the planet.

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