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Planetary Radio

Series produced by Mat Kaplan

Series image

The Planetary Society's travel show that takes you to the final frontier, featuring commentary by Society CEO Bill Nye the Science Guy.

Public radio's only long format, weekly series devoted to space exploration and the scientists, engineers, astronauts and visionaries who lead it. Most episodes include an in-depth interview along with regular segments that incude:

Planetary Society CEO Bill Nye the Science Guy's weekly commentaries...Emily Lakdawalla's Snapshots From Space...What's Up! (...in the night sky, with other fun and intriguing space info and a weekly contest.)

Several episodes each year are recorded live before an enthusiastic audience, often with live music. We also cover special space events, like the landing of the Curiosity Mars Rover, and take listeners to the places where scientists learn about the cosmos, like Chile's Atacama Desert.

Episodes are available from the PRSS each Tuesday on channel A68.5, from 1600-1630 Eastern. We also make a 128kb MP3 available to stations at our website.

Every week, Planetary Radio visits with a scientist, engineer, astronaut, project manager, advocate, visionary or writer who can provide 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.

Past guests have included Buzz Aldrin, Sally Ride, X Prize Founder Peter Diamandis, Ray Bradbury, Bill Nye the Science Guy, Steve Squyres of the Mars Exploration Rover Project, Galileo's Daughter author Dava Sobel, interplanetary volcano expert Rosaly Lopes, the European Space Agency's Bernard Foing and scores of other leaders.

Each episode also includes an irreverent look at the current night sky with astronomer and Planetary Society Director of Projects Bruce Betts. These "What's Up!" segments also include a Random Space Fact, This Week in Space History, and our popular weekly space trivia contest.

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Public radio's only long format, weekly series devoted to space exploration and the scientists, engineers, astronauts and visionaries who lead it. Most episodes include an in-depth interview along with regular segments that incude: Planetary Society CEO Bill Nye the Science Guy's weekly commentaries...Emily Lakdawalla's Snapshots From Space...What's Up! (...in the night sky, with other fun and intriguing space info and a weekly contest.) Several episodes each year are recorded live before an enthusiastic audience, often with live music. We also cover special space events, like the landing of the Curiosity Mars Rover, and take listeners to the places where scientists learn about the cosmos, like Chile's Atacama Desert. Episodes are available from the PRSS each Tuesday on channel... Show full description


230 Pieces

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Caption: Artist concept of uneven dust ring surrounding “Tabby’s Star” KIC 8462852, Credit: NASA/JPL-Caltech
It may not host an alien “megastructure” but Tabby’s Star still guards many mysteries of science. Astronomer and astrophysicist Tabetha “Tabby” Boy...

Bought by KNVC Carson City Community Radio, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, KRZA and more


  • Added: Jan 09, 2018
  • Length: 28:50
  • Purchases: 8
Caption: Artist concept of SpaceX Falcon Heavy launch., Credit: SpaceX
Mat’s first-ever four-way conversation with colleagues Jason Davis, Casey Dreier and Emily Lakdawalla provides their predictions of space milestone...

Bought by KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, KRZA, WMUU-LP and more


  • Added: Jan 02, 2018
  • Length: 28:50
  • Purchases: 6
Caption: Recurring slope lineae or RSLs on Mars are not likely to indicate flowing water according to new research., Credit: NASA/JPL/UA/Emily Lakdawalla
Mars scientists dubbed them recurring slope lineae or RSLs. They sure looked like evidence of liquid water flowing down hillsides and ridges on th...

Bought by KSVR Studios: Skagit Valley Radio, KWMR, KRZA, KMRE-LP, WMUU-LP and more


  • Added: Dec 26, 2017
  • Length: 28:50
  • Purchases: 6
Caption: A Voyager 2 image of Jupiter’s Great Red Spot, after image processing with modern tools., Credit: NASA-JPL-Björn Jónsson-Seán Doran
A holiday edition of Planetary Radio welcomes the Planetary Society’s Senior Editor back from the annual meeting of the American Geophysical Union....

Bought by KWMR, KSVR Studios: Skagit Valley Radio, and KMRE-LP


  • Added: Dec 19, 2017
  • Length: 28:50
  • Purchases: 3
Caption: Representatives of Congress and the National Space Council, along with several astronauts, joined President Donald J. Trump, for the president’s signing of Space Policy Directive 1., Credit: NASA/Aubrey Gemignani
On December 11th President Donald Trump signed a memorandum that firmly points the US space effort toward the Moon, but without providing many deta...

Bought by KSVR Studios: Skagit Valley Radio, KWMR, KRZA, WMUU-LP, KMRE-LP and more


  • Added: Dec 12, 2017
  • Length: 28:50
  • Purchases: 6
Caption: This artist's impression shows the first detected interstellar asteroid: `Oumuamua. This unique object was discovered on October 19, 2017 by the Pan-STARRS 1 telescope in Hawai`i. `Oumuamua seems to be a dark red highly-elongated metallic or rocky object,, Credit: ESO/M. Kornmesser
The first confirmed interstellar visitor to our solar system is a needle-shaped asteroid given the Hawaiian name ‘Oumuamua. Karen Meech leads the ...

Bought by KSVR Studios: Skagit Valley Radio, KWMR, KRZA, WMUU-LP, KMRE-LP and more


  • Added: Dec 06, 2017
  • Length: 28:50
  • Purchases: 6
Caption: Artist concept of Moon Express MX-9 Sample Return Ascent, Credit: Moon Express
Moon Express Founder and CEO Bob Richards shares an inspiring vision for a return to the Moon. It includes introduction of a sophisticated line of...

Bought by KWMR, KSVR Studios: Skagit Valley Radio, KRZA, WXAV 88.3FM, WMUU-LP and more


  • Added: Nov 29, 2017
  • Length: 28:50
  • Purchases: 6
Piece image
Canada has a new Space Advisory Board, and the Planetary Society’s Kate Howells is a member. Mat Kaplan also talks with Jeff Kuhn and Thomas Rimme...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WMUU-LP, KMRE-LP and more


  • Added: Nov 22, 2017
  • Length: 28:50
  • Purchases: 6
Caption: California Congressman Adam Schiff 	, Credit: Adam Schiff
They may disagree about nearly every other issue, but many Republican and Democratic congressional representatives find common ground where there i...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WMUU-LP, KRZA and more


  • Added: Nov 15, 2017
  • Length: 28:50
  • Purchases: 7
Caption: Andy Weir’s Artemis is the new novel set in a city on the Moon. , Credit: Crown Publishing
The author of #1 bestseller The Martian is back with Artemis, a superbly-researched, rollicking adventure in the first city on the Moon. You might ...

Bought by WTJU, KMRE-LP, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM and more


  • Added: Nov 08, 2017
  • Length: 28:50
  • Purchases: 7
Caption: This beautiful view of the Lagoon Nebula was acquired in May–June 2015.  It’s about 55 light years wide, and is just over 4,000 light years from our solar system., Credit: Adam Block / Mount Lemmon SkyCenter / University of Arizona
Join us for a wide-ranging, salon-style conversation about space exploration, science, art and more. Mat’s guests are astronomer, television produ...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, WMUU-LP and more


  • Added: Nov 01, 2017
  • Length: 28:50
  • Purchases: 6
Caption: The National Radio Astronomy Observatory’s Very Large Array in New Mexico, Credit: National Radio Astronomy Observatory
Are we alone? The nearly sixty-year effort to answer that question has gotten a big boost from the Breakthrough Initiatives, funded by Yuri Milner ...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, KRZA and more


  • Added: Oct 24, 2017
  • Length: 28:50
  • Purchases: 8
Caption: Night image of Italy from space, Credit: NASA/GSFC
Astronomer Pamela Gay is probably best known as co-host of the Astronomy Cast podcast, but she is also Principal Investigator for the CosmoQuest vi...

Bought by WTJU, KWMR, KSVR Studios: Skagit Valley Radio, WMUU-LP, KRZA and more


  • Added: Oct 17, 2017
  • Length: 28:50
  • Purchases: 7
Caption: Occator Crater on dwarf planet Ceres, with its now less mysterious bright spots or areas., Credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA/PSI
Dawn Mission Director and Chief Engineer Marc Rayman helps us salute the ion-engine powered spacecraft that first orbited asteroid Vesta in the mai...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, WMUU-LP and more


  • Added: Oct 11, 2017
  • Length: 28:50
  • Purchases: 7
Caption: IAC 2017 CEO and former Space Industry Association of Australia Chair Brett Biddington, Credit: IAC/IAF
The Australian government announced that it would create a national space agency at the 68th annual International Astronautical Congress in Adelaid...

Bought by WTJU, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, KRZA and more


  • Added: Oct 04, 2017
  • Length: 28:50
  • Purchases: 7
Caption: Artist concept of the Cassini spacecraft struggling to keep its antenna pointed at Earth in the moments before it burns up in Saturn's atmosphere., Credit: NASA/JPL-Caltech
More than 1,100 fans of the just-completed 20-year mission to Saturn joined us for a live tribute. The Planetary Society’s Mat Kaplan and KPCC Scie...

Bought by WTJU, KWMR, KSVR Studios: Skagit Valley Radio, WXAV 88.3FM, KRZA and more


  • Added: Sep 27, 2017
  • Length: 28:50
  • Purchases: 7
Caption: NASA's flashy Cassini Grand Finale poster!, Credit: NASA/JPL-Caltech
Join us at JPL and Caltech on the bittersweet morning the Cassini spacecraft plunged into Saturn. We’ll hear from several of the mission’s leaders...

Bought by KSVR Studios: Skagit Valley Radio, KWMR, WTJU, WXAV 88.3FM, KRZA and more


  • Added: Sep 20, 2017
  • Length: 28:50
  • Purchases: 7
Caption: (L to R) David Brin, Geoffrey Landis, Gregory Benford, Larry Niven and Robert Zubrin at the 2017 Mars Society Convention, Credit: Mat Kaplan
Robert Zubrin of the Mars Society talks with Gregory Benford, David Brin, Geoffrey Landis and Larry Niven about terraforming Mars, the origin of li...

Bought by WTJU, KWMR, KSVR Studios: Skagit Valley Radio, WMUU-LP, KRZA and more


  • Added: Sep 13, 2017
  • Length: 28:50
  • Purchases: 7
Caption: Artist concept of heliogyro solar sail for 1980s Halley's Comet mission., Credit: NASA/JPL
The co-founder and Executive Director Emeritus of the Planetary Society returns for a conversation about the allure of sailing through space. Digi...

Bought by KRZA, KSVR Studios: Skagit Valley Radio, KWMR, WTJU, WMUU-LP and more


  • Added: Sep 05, 2017
  • Length: 28:50
  • Purchases: 8
Caption: Mat Kaplan and guests at Southern Illinois University Carbondale on the evening before the Great American Eclipse, Credit: Board of Trustees, Southern Illinois University
With hours to go before the Great American Eclipse, Mat Kaplan hosted a Planetary Radio Live session in front of 1,100 rowdy eclipse and space scie...

Bought by KFCF FM, KSVR Studios: Skagit Valley Radio, KWMR, WXAV 88.3FM, WTJU and more


  • Added: Aug 30, 2017
  • Length: 28:50
  • Purchases: 8