Explore Worlds
Find Life
Defend Earth
All
All
Sun
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Small BodiesStories, updates, insights, and original analysis from The Planetary Society.
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.
Artemis II hit Taylor Swift levels of fame. Now what?
How much did Artemis II resonate with people — or glance off them?
Days after Artemis II, scientists warn of deep cuts to NASA missions
The scientists behind threatened missions speak out.
How do things in space get their names?
From a lunar feature named after a loved one to a planet named after a god, traditions and rules guide how we name things in space.
84 NASA missions at risk under new proposal
Proposed NASA cuts would reduce NASA’s workforce by thousands and cancel over 50 space missions.
What's keeping the Artemis astronauts safe?
Though no spaceflight is without danger, Artemis II carries special risks.
Artemis II blasts off, sending humans back to the Moon
NASA's Artemis II mission has just launched people to the Moon for the first time in over 50 years.
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.
Why do some planets have rings and others don't?
The giant planets of our Solar System all have rings, as do some dwarf planets and even asteroids. So why don’t Mercury, Venus, Earth, or Mars?
What is a "planetary alignment"?
What to expect when multiple planets appear in the sky together.
The Artemis II mission
Artemis II sent humans back to the Moon for the first time in over 50 years, with four astronauts on a 10-day mission around the Moon and back.
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.
Calendar of space events 2026
Space missions, rocket launches, and celestial events are coming our way in 2026.
Rogue worlds and the boundaries of planethood
Exploring rogue planets, how they form, and how they expand our conception of what counts as a planet.
Which stars could host alien life?
Every star in the Universe creates a different environment for the worlds around it.
The images of the Universe put at risk by proposed NASA cuts
Cosmic views put at risk by proposed NASA cuts
“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.