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Celebrating One Year of Solar Sailing

The Planetary Society's LightSail 2 spacecraft has been in space a full year. Learn about our extended mission, join us on 25 June for a live celebration, and hear our team members discuss what we've accomplished.

Our Commitment to Work Against Racism

Many of us are having a hard time looking up right now. It’s a painful moment. We here at The Planetary Society recognize we must do more to support Black people, including Black people who love space. Read our initial response from CEO Bill Nye and watch Nye speak with retired NASA astronaut Leland Melvin.

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A Conversation: Leland Melvin and Bill Nye

Retired NASA astronaut Leland Melvin joins Bill Nye, CEO of The Planetary Society, in a wide-ranging conversation about recent space milestones and how racial inequality afflicts space exploration.

Get Ready for Mars

Next month, 3 countries are launching 3 new missions to Mars. We've got everything you need to get ready.

The Downlink

Our weekly newsletter is your toolkit to learn more about space, share information with your friends and family, and take direct action to support exploration. View past issues at planetary.org/downlink and sign up to receive The Downlink in your email at planetary.org/connect.

Your Guide to Planetary Missions & Worlds

We're building guides to the worlds of our solar system and beyond, and the missions that visit them. See the latest new pages we've published.

Planets & Other Worlds

Jupiter

Saturn

More Blogs & Articles

The Downlink: Station Crew Home, Hayabusa2 Deploys Rover

Jason Davis • October 04, 2019 • 2

Planetary exploration news for busy people

Tourism: Apollo's Forgotten Legacy

Emily Margolis • September 30, 2019

Americans were deeply divided over the value of the Apollo program. One member of Congress had a radical idea: open Kennedy Space Center to the public.

How the European Space Agency Does Planetary Defense

Detlef Koschny • September 27, 2019

Defending the planet from the hazard of potential asteroid impacts requires investments from the whole world. In Europe, the European Space Agency (ESA) and the European Union both support work to understand and mitigate the threats from near-Earth objects.

How NASA's Planetary Defense Budget Grew By More Than 4000% in 10 years

Casey Dreier • September 26, 2019 • 3

NASA used to spend more on travel for its employees at headquarters than it did on finding dangerous near-Earth asteroids. Now it’s building asteroid-hunting space telescopes. What changed?

NASA to Build New Asteroid-Hunting Space Telescope

Jason Davis • September 24, 2019 • 1

The yet-to-be-named telescope would launch as soon as 2024, as part of NASA's new, multi-pronged approach to planetary defense.

Bill Nye, Planetary Society Staff Listen to LightSail 2 Signal

Jason Davis • September 19, 2019

When LightSail 2 recently flew south of The Planetary Society's headquarters, CEO Bill Nye and other staff members stepped outside to listen.

Registration Is Now Open for the 2020 Day of Action

Casey Dreier • September 18, 2019

Join The Planetary Society and advocate for space in Washington, D.C. this 9 - 10 February 2020.

Astronomers May Have Found an Interstellar Comet. Here's Why That Matters.

Jason Davis • September 13, 2019 • 4

Astrophysicist Karl Battams tells us what we can learn by studying objects from outside our solar system.

Here's How I'm Celebrating 53 Years of Star Trek

Robert Picardo • September 08, 2019

Star Trek Voyager Emergency Medical Hologram and Planetary Society Board member Robert Picardo uncovers rare Star Trek artifacts at The Planetary Society.

India's Vikram Spacecraft Apparently Crash-Lands on Moon

Jason Davis • September 06, 2019 • 5

Communications were lost with the lander, which was carrying a small rover named Pragyan to the lunar surface.

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