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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
Announcing our new STEP Grant winners: A Solar System shadow-tracker, a new telescope tool, and an asteroid database
Three groups of scientists will receive crowdfunded support to further the scientific exploration of space.
An insider's look at the Nancy Grace Roman Space Telescope
Dr. Jason Rhodes, Jet Propulsion Laboratory project scientist for the Nancy Grace Roman Space Telescope, shares what to expect from NASA’s next great observatory.
Meet the next generation of Mars exploration
Countries around the world are planning missions to Mars, including rovers and a sample return from the moon Phobos.
The Nancy Grace Roman Space Telescope has launched
NASA’s next flagship orbital observatory will reshape what we know about planets throughout the galaxy.
What could the Artemis IV astronauts discover on the Moon?
NASA is already planning what the crew will do on their lunar landing mission.
Solstices, equinoxes, and seasons
How Earth’s tilted axis causes our seasons.
What's actually new about NASA's Artemis missions?
How the technology of Artemis II builds on the past and relies on the new.
What would it be like to fly through Saturn’s rings?
Saturn’s rings are one of the most beautiful sights in the Solar System, but most of us have no idea what they look like up close.
Astronomers thought JWST might find signs of life. Now they have a new plan.
An update in the search for alien life beyond the Solar System.
Beyond the unknown: The coming Kuiper belt revolution
Discoveries about the worlds of the Kuiper belt could revolutionize our understanding of the Solar System and its ancient past.
NASA has lost a spacecraft around Mars. Is MAVEN gone for good?
A pioneering spacecraft has gone missing around Mars, and NASA says the mission is probably unrecoverable.
Which stars could host alien life?
Every star in the Universe creates a different environment for the worlds around it.
Our best proof of life on Mars yet? A deep dive into Cheyava Falls
A strange rock on Mars is different from anything we’ve seen before in the search for life.
Where do 3I/ATLAS and other interstellar visitors come from?
Interstellar interlopers like 'Oumuamua and 3I/ATLAS could be our best bet at exploring other stars.
Rethinking the atoms of life
Astrobiologists aren't just looking at other worlds to search for life; they're looking back to ancient Earth and considering alternate biochemistries.
Other Earths
Astronomers are closing in on planets that might be like our own.
Supporting asteroid defense: The 2025 Shoemaker NEO Grant winners
Meet the latest winners of The Planetary Society's Shoemaker NEO Grant program.
Updates from our asteroid-hunting Shoemaker NEO Grant winners
An overview of updates from some of our previous Shoemaker NEO Grant winners.
Are UFOs or UAPs real?
Something weird is happening — something that, even as an astronomer, I once struggled to explain.
Announcing the 2023 Shoemaker NEO grant winners
Meet the latest round of winners in The Planetary Society's Shoemaker Near-Earth Object (NEO) grant program, which funds astronomers around the world in their efforts to find, track, and characterize near-Earth asteroids.