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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
Scientists behind threatened NASA missions explain what’s at stake
Here is what they have to say, in their own words.
How astronomers rank dangerous asteroids (and what that means for you)
A breakdown of the Torino scale, designed to give a quick sense of how worried you should be about an asteroid or comet.
Needles in the haystack
How advanced amateurs defend Earth from asteroids.
Extraterrestrial lights
How other worlds experience auroras.
New NASA budget would shut down 41 space missions
Proposed NASA cuts would cancel dozens of space missions — including spacecraft already paid for, launched, and making discoveries.
At the Cosmic Shores Gala, celebration, connection, and hope for the future
The Planetary Society celebrates 45 years of advocating for space science and exploration.
A possible sign of life on K2-18b? Here’s what it means — and why it's just the beginning
If dimethyl-sulfide truly exists on the planet K2-18 b, it could be a huge milestone in the search for life.
How to spot comet SWAN (C/2025 F2)
Catch this spectacular comet over the next few weeks.
Are UFOs or UAPs real?
Something weird is happening — something that, even as an astronomer, I once struggled to explain.
Exploration on autopilot
The future of AI in space.
How The Planetary Society's grassroots movement shapes the future of space
With wide-reaching support, we're speaking up for space missions and sharing our love of space.
Calendar of space events 2025
Space missions, rocket launches, and celestial events are coming our way in 2025.
Tech funded by Planetary Society launches to the Moon next month
A spacecraft trying to land on the Moon will carry PlanetVac, the lunar dustbuster that could change how we explore other worlds.
The year in pictures
The sights of space from the past 12 months.
A beginner’s guide to stargazing
It only takes a few basic tips to start exploring the night sky.
Could Europa Clipper find life?
For a mission that doesn’t aim to find alien life, Europa Clipper may come surprisingly close.
Extraterrestrial artifacts
Could the Solar System host traces of other intelligent life?
Ramses: A new mission racing to land on asteroid Apophis
When a skyscraper-sized asteroid narrowly misses Earth in 2029, three spacecraft may be along for the ride.
Mars may host oceans’ worth of water deep underground
The tentative discovery hints at an habitat where life could potentially thrive.
NASA discovers Mars rock with ancient potential for life
A single 3.5 billion-year-old rock shows signs of all the conditions life needs to thrive.