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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
NASA's FY 2025 budget request is not enough
Federal spending caps and inflation take a bite out of NASA's ambitions.
Is the Moon shrinking?
The Moon is shrinking in both actual volume and its apparent size from Earth’s perspective. We explain how scientists know this, why it happens, and how it might affect Earth.
Hidden depths and a cosmic mystery
Jupiter has much more going on beneath its outer clouds, and NASA invites players to unravel a fictional mystery.
The Planetary Society advocacy priorities in NASA’s final 2024 budget
Funding for the Near-Earth Object Surveyor, support for VERITAS, and a second lease on life for Mars Sample Return were all included in the final congressional budget for NASA in 2024.
How to find eclipse events in your area
There are hundreds of eclipse events being held all across North America. Here's how to find one near you.
Transits are cool, but…
A moon transiting the Sun is awesome, but still doesn’t quite compare to a total solar eclipse. Learn why, find out about Europa Clipper’s message in a bottle, and more.
Red Rover Goes to Mars, 20 years later
Twenty years ago, a Planetary Society program sent students to NASA's Jet Propulsion Laboratory to work on the Mars Exploration Rovers program.
Your impact: March equinox 2024
Announcing the first C. Wallace Hooser award for visionary philanthropy
Seizing upon syzygy
How scientists use total solar eclipses as opportunities to do solar science.
An exquisite cosmic coincidence
Why eclipses on Earth are unlike anything else in the Solar System.
Science to satisfy curiosity
The Curiosity rover is climbing a mountain to gain knowledge. Bringing back Mars samples will gain us even more.
The science value of Mars Sample Return
The project has the potential to transform our understanding of the Solar System and provide evidence of life beyond Earth.
Lunar success stories
The Odysseus spacecraft marks the return of U.S. landers to the Moon. JAXA wants you to help name an asteroid. And we’re speaking up for your place in space.
A ridge over hidden water
Ridges on Mars and Europa hint at past and present water. Distant dwarf planets are unexpectedly warm. And we’re working hard to help find life.
Can SpaceX’s Starship save Mars Sample Return?
Though promising conceptually, Starship presents more questions than answers for NASA's Mars Sample Return needs.
How to host an eclipse party
Hosting a solar eclipse-watching party is a fantastic way to share one of nature’s most awe-inspiring events with your friends and family. Here’s a guide to hosting a safe and memorable eclipse-watching party.
Far from predictable
Some things, like solar cycles, are hard to predict. Others, like Zoozve taking the world by storm, are even more unpredictable.
The path forward for Mars Sample Return
A brief summary of The Planetary Society's policy principles and recommendations for Mars Sample Return.
Become an Eclipse Explorer!
In anticipation of the total solar eclipse on April 8, 2024, The Planetary Society has partnered with the National Park Service to launch a new Eclipse Explorer Junior Ranger booklet.
The history and motivations behind India's growing space program
Gurbir Singh joined us on Planetary Radio: Space Policy Edition to discuss the history and motivations behind India’s space program.