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As a global society, we achieve great things when we work together. Right now, due to the global pandemic, we have to work together by staying apart. Whether you're in isolation or not, we're here to help you explore what we know about this cosmos of ours.

Awesome Space Photos

Explore our unique and expansive collection of recent and past photos and videos from the world's space agencies, plus artwork, diagrams, and amateur-processed space images.

More Space Images

Amazing Space Footage

Take a break from whatever you're binge-watching and check out some amazing real video footage from outer space.

Lunar South Pole Earthset

The Surface of an Asteroid

Yutu-2 on the Lunar Surface

More Space Videos

Calm with Carl Sagan

Find some tranquility through the uplifting words of Planetary Society co-founder and famed science communicator Carl Sagan.

More videos with Carl Sagan

Watch the original Cosmos

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You can also read reviews of each episode of Carl Sagan's original television series Cosmos: A Personal Voyage, drawn from a 2013 series with our Chief Advocate Casey Dreier, Cosmos with Cosmos.

Expand Your Knowledge

Get to know important space topics through our free online courses.

Explore Space

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


The Moon

More Missions and Worlds

For the Kids

Random Space Facts

Dr. Bruce Betts teaches you something new about the cosmos in just under a minute or two.

Planet Ping Pong

Moon Rocks with Bill Nye

How big is our Milky Way?

Watch the whole collection

At-Home Activities

Bill Nye explains simple space concepts and how kids can try them out at home.

Too Hot or Too Cold in Space?

Why is Mars Orange?

Life on Other Worlds?

Try more at-home activities

Space Books for Kids

Our Solar System Specialist Emily Lakdawalla puts together an annual list of her favorite space books for kids. Check out the lists from 2019 and 2018, or view the entire archive.

Catch up with Planetary Radio

Tune in and venture out into the cosmos. Each episode of Planetary Radio features conversations with The Planetary Society's in-house experts, including host Mat Kaplan and CEO Bill Nye, and people who are leading the way in space science and exploration. 

July 3, 2020
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July 1, 2020
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June 24, 2020
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Browse All Episodes

Get Social

Bring the cosmos into your day-to-day life by following us on social media where we share the latest in space, answer your questions, and connect you with people who share your passion. Follow our hashtag #InSpaceTogether for a regular dose of space serenity.

Dig into The Planetary Report

The Planetary Report is our flagship print magazine. Every issue since our founding is available for free online. Read rare, original writing from luminaries like Carl Sagan, Frank Drake, Jill Tarter, and many more.

In Space Together

In Space Together

Vol. 40, No. 2, June Solstice 2020

Containing feature articles by Emily Lakdawalla; The Planetary Society

Finding comfort in the cosmic perspective, plus a sample return roundup and Carl Sagan's case for Mars.

What Lies Ahead?

What Lies Ahead?

Vol. 40, No. 1, March Equinox 2020

Containing feature articles by The Planetary Society

Planetary scientists chart the next 10 years of exploration. Plus: Shoemaker Grant winners, and Sasha Sagan's cosmic perspective.

Looking Back, Looking Ahead

Looking Back, Looking Ahead

Vol. 39, No. 4, December Solstice 2019

Containing feature articles by Abigail Fraeman; Javier Gómez-Elvira

A New Understanding, by Abigail Fraeman; What Comes Next on Mars?, by Javier Gómez-Elvira; Space on Earth; Snapshots From Space, by Emily Lakdawalla; Your Place In Space, by Bill Nye; Your Impact; What’s Up?, by Bruce Betts; Where We Are, by Emily Lakdawalla; Why I Explore, by Franck Marchis.

Download a subject index to the first 20 years of The Planetary Report (1980-2001)

Explore Apollo

Learn the history of NASA's Apollo program that sent humans to the Moon.

Look out for LightSail

The Planetary Society's crowdfunded solar sailing spacecraft is in orbit around the Earth and you can see it for yourself!

For updates and weekly tools to learn, share, and advocate for more space exploration, subscribe to our newsletter, The Downlink.

Bill Nye and people
Let's Change the World

Become a member of The Planetary Society and together we will create the future of space exploration.

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The Planetary Fund

Help advance robotic and human space exploration, defend our planet, and search for life.


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