Columbia Experiment Recovered!

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

The U.S. won the space race in July of 1969 with the success of Apollo 11. But was the Soviet Union even racing? How close were they to beating the United States to the Moon? Soviet space historian Dr...

7 Jun 20192h 3min

Jay Pasachoff visits Planetary Society headquarters for a conversation about the latest edition of his and Alex Filippenko’s monumental textbook The Cosmos.  But that’s just the start of a discussion ...

5 Jun 20191h 1min

This year’s Humans to Mars Summit in Washington DC once again ended with a panel of Martian all-stars talking about their hopes for a future that includes the Red Planet. Planetary Radio host Mat Kapl...

29 Mai 201955min