A Happy 20th Anniversary for Planetary Radio

Join us as the little cubesat successfully unfurls its solar sail. You’ll hear from members of the LightSail 2 mission team on the morning of July 23, 2019, when the critical command was sent to the s...

24 Jul 201939min

Poppy Northcutt was a pioneer—the first woman to work as an engineer in Apollo Mission Control. The program she helped to create got the astronauts back to Earth.  Fifty years later, she sits down wit...

17 Jul 201955min

NASA has given the go-ahead for Dragonfly, a flying rotorcraft that will explore Saturn’s mysterious moon Titan. Mission Principal Investigator Elizabeth “Zibi” Turtle helps us celebrate. Troy Hudson ...

10 Jul 201956min

Half a century has passed since Neil Armstrong and Buzz Aldrin imprinted humanity's first footsteps upon another world. Apollo 11 was the culmination of a decade's worth of fervent activity in which t...

5 Jul 20191h 45min

A giant SpaceX Falcon Heavy lifted off in the early hours of June 25th. One week later, the LightSail 2 solar sail was released to begin its epic mission. You’ll join the thrilling launch, meet LightS...

3 Jul 201950min

It has been many months since the great Cassini spacecraft plunged into Saturn’s atmosphere and fiery death.  Yet the mission lives on as the reams of data and images reveal much more of this beautifu...

26 Jun 201938min

The day is almost here. With the launch of a Falcon Heavy rocket, The Planetary Society will begin its mission to prove that a tiny, orbiting spacecraft can be propelled by the light of the Sun. Socie...

19 Jun 201948min

Even though his own work led to it, Albert Einstein never cared for quantum mechanics concepts like entanglement, which he called “spooky action at a distance.” While there’s no doubt it is real, coul...

12 Jun 201958min