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Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
“We’re made of starstuff.” What does that mean?
Carl Sagan's famous quote is more than just poetic — it's true.
ESCAPADE launch: What to expect
NASA's ESCAPADE mission will send a pair of twin probes to Mars to study how the solar wind has stripped away the planet’s atmosphere, leaving behind the desolate surface we see today.
Promoted on Sunday, Fired on Monday: Inside a NASA Office’s sudden closure
As thousands leave the space agency, two ex-NASA workers give an inside account of how their office was abruptly shut down.
4,000 gone: Inside NASA’s brain drain
In exclusive interviews, ex-NASA scientists speak out on the impact of the agency's mass departures.
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.
What is comet 3I/ATLAS?
A roundup of key facts and surprising discoveries about the third known interstellar object.
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.
NASA: Perseverance found possible biosignatures in Martian rock
NASA’s Perseverance rover has identified a potential sign of past life on Mars — not a definitive detection, but perhaps the most compelling hint yet.
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.
China eyes Saturn’s icy moon Enceladus in the hunt for habitability
China’s Deep Space Exploration Laboratory and the Shanghai Institute of Satellite Engineering have proposed an orbiter and lander mission to explore Enceladus with a key focus on the moon’s potential habitability.
Why send people back to the Moon?
What can an astronaut do on the Moon that a robot can’t?
Ten years after Pluto, New Horizons faces a new threat
The newly proposed budget for NASA would shut down the spacecraft midflight.
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.