Mat Kaplan’s first flight in zero-G

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 Juli 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 Juli 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 Juli 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 Juni 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 Juni 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 Juni 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 Juni 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 Juni 20191h 1min