The Planetary Society

The Planetary Society Champion a future full of space exploration! Become a member today at planetary.org We encourage discussion about the cosmos and our place within it.

In 1980, Carl Sagan, Louis Friedman, and Bruce Murray founded The Planetary Society. They saw that there was enormous public interest in space, but that this was not reflected in government, as NASA’s budget was cut again and again. Today, The Planetary Society continues this work, under the leadership of CEO Bill Nye, as the world’s largest and most influential non-profit space organization. The

organization is supported by over 50,000 members in over 100 countries, and by hundreds of volunteers around the world. Our mission is to empower the world’s citizens to advance space science and exploration. We advocate for space and planetary science funding in government, inspire and educate people around the world, and develop and fund groundbreaking space science and technology. We introduce people to the wonders of the cosmos, bridging the gap between the scientific community and the general public to inspire and educate people from all walks of life. We give every citizen of the planet the opportunity to make their voices heard in government and effect real change in support of space exploration. And we bring ordinary people directly to the frontier of exploration as we crowdfund innovative and exciting space technologies. Commenting Policy:

This page is intended to inspire the world's citizens to advance space science and exploration. We hope you share your thoughts and ideas with us. That said, we reserve the right to delete posts or ban users that are in violation of our community standards, including, but not limited to spam, profanity and personal attacks.

We were at the City of Astronomy Science Festival in Pasadena this past weekend! Visitors of all ages placed hearts on t...
06/15/2026

We were at the City of Astronomy Science Festival in Pasadena this past weekend! Visitors of all ages placed hearts on their favorite worlds, choosing from posterboards showing how much observing time and how many spacecraft humanity has dedicated to each one, and which worlds still remain largely unexplored.

The results say a lot about which worlds have captured our collective imagination, and the mysteries that are still waiting for us.

Thanks for spending your Sunday with us and so many other great organizations! 🪐

Three total solar eclipses are happening across the globe in the next three years and now is the time to start planning....
06/15/2026

Three total solar eclipses are happening across the globe in the next three years and now is the time to start planning. Here's everything you need to know about where to go and how to prepare. ☀️ 🌑 🌎

Bruce Betts and Sarah Al-Ahmed provided a guide to all total solar eclipses through the end of the 2020s, with dates and locations.

Free astronomy festival begins this Sunday, June 14th in Pasadena! Build a comet, see the Sun up close, watch gravitatio...
06/12/2026

Free astronomy festival begins this Sunday, June 14th in Pasadena!

Build a comet, see the Sun up close, watch gravitational wave demos, catch talks on black holes, exoplanets, asteroids, and more! The Planetary Society is joining Caltech, JPL, Carnegie, and more at the City of Astronomy Science Festival, and it's free for everyone.

Starting event:
📅 June 14
🕐 1–5 PM
📍 Pasadena Convention Center

Learn more about all the events:

Events for June 2026 Pasadena, CA

06/12/2026

A total solar eclipse is crossing the Atlantic and Europe on August 12, with the path of totality hitting Iceland, Spain, and Portugal. Here's what a total solar eclipse actually is, what you'll see, and why it's worth every bit of the hype.

06/10/2026

An amazing gift from a wonderful organization. Thank you to everyone who participated in America's Favorite Student, this gift will help us continue our mission of protecting space science for all. 🍎❤️

06/09/2026

Randy Bresnik has just been announced Commander of Artemis III! Here’s an interview with him before the Artemis II launch 🚀

Artemis III is the next step in NASA’s plan to bring humankind back to the Moon. Here's everything you need to know ⬇️
06/09/2026

Artemis III is the next step in NASA’s plan to bring humankind back to the Moon. Here's everything you need to know ⬇️

The next step in NASA’s plan to bring humankind back to the Moon.

Say hello to the Artemis III crew! 🚀 NASA astronaut Randy Bresnik, commanderESA astronaut Luca Parmitano, pilotNASA astr...
06/09/2026

Say hello to the Artemis III crew! 🚀

NASA astronaut Randy Bresnik, commander
ESA astronaut Luca Parmitano, pilot
NASA astronaut Andre Douglas, mission specialist
NASA astronaut Frank Rubio, mission specialist

Their mission: dock with both commercial Moon landers, Blue Origin's Blue Moon and SpaceX's Starship, in Earth orbit, testing the hardware that will carry astronauts to the lunar surface on Artemis IV.

📸: NASA (from left: Andre Douglas, Luca Parmitano, Randy Bresnik, Frank Rubio)

Learn more ⬇️
https://www.nasa.gov/news-release/nasa-marches-toward-artemis-iii-mission-in-2027-names-crew-members/

On Wednesday, August 12, 2026, a total solar eclipse will cross parts of the Northern Hemisphere, marking the first visi...
06/08/2026

On Wednesday, August 12, 2026, a total solar eclipse will cross parts of the Northern Hemisphere, marking the first visible from Western Europe since 1999. The path of totality sweeps through Spain, Greenland, and Iceland, with a maximum duration of 2 minutes and 18 seconds.

Use our resources below to learn more about eclipses:

A total solar eclipse is coming across Iceland, Greenland, and Spain on August 12, 2026, and you're invited to experience it with The Planetary Society.

Humans just flew around the Moon for the first time in 50 years. So what comes next and are we actually ready for it? Th...
06/08/2026

Humans just flew around the Moon for the first time in 50 years. So what comes next and are we actually ready for it? This month's Planetary Report goes deep on the physiology of long-duration spaceflight, the policy forces shaping human exploration, and the technology bridging Apollo to Artemis.

Download the PDF version for free:

Daring to leave the cosmic shore

Address

60 S Los Robles Avenue
Pasadena, CA
91101

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