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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.

Calling All Image Processors: Help Us Create a Top-Down View of LightSail 2

Jason Davis • September 06, 2019 • 1

We've got 2 fish-eye pictures of the spacecraft's solar sail from opposite cameras, and we're hoping they can be combined.

The September Equinox 2019 Issue of The Planetary Report Is Out!

Emily Lakdawalla • September 03, 2019

A new issue of The Planetary Report brings you our pride in the success of LightSail 2 and our gratitude to our members for making it happen. Plus Venus science from Akatsuki and Venus Express, and the status of planetary defense.

Your Impact: Mission Success!

The Planetary Report • September Equinox 2019

Your LightSail 2 spacecraft is in space, controlling its orbit solely on the power of sunlight.

Where We Are

The Planetary Report • September Equinox 2019

We lost and gained spacecraft at the Moon last quarter. India’s Chandrayaan-2 left Earth orbit for the Moon on 13 August, and its Vikram lander aims at a 7 September touchdown. Lunar Reconnaissance Orbiter just celebrated its tenth launch anniversary. China’s smallsat Longjiang-2 crashed on 31 July, ending its successful mission.

Why I Explore

The Planetary Report • September Equinox 2019

I explore space because I like feeling insignificant. I crave a dark night sky that reminds me that our Sun and even our galaxy are not unique. I find comfort in thinking about countless generations of humans looking at the same sky and asking questions similar to the ones I ask.

The State of Planetary Defense

The Planetary Report • September Equinox 2019

Vishnu Reddy delivers a sober but hopeful report on our understanding of near-Earth objects, their dangers, and our readiness.

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