Stories, updates, insights, and original analysis from The Planetary Society.
The Earth is thought to be about 4.54 billion years old. Learn more about how it formed, and how we know when this all happened.
We asked two eclipse chasers for tips on how to plan your big moment in the Moon's shadow.
A list of useful words and terms relating to lunar and solar eclipses.
Discover what causes a comet’s color and what it might be like to listen to one whiz by.
Know what to expect ahead of time, and be prepared to experience a cosmic spectacle like nothing else in nature.
Comet Nishimura was discovered in August 2023, and is passing close to Earth and the Sun in September. Learn more about it and how to find it.
See the month’s coolest space pictures, see planets in the night sky, and create the future in space that you want to see.
Exploring humanity’s long relationship with the Moon.
How the origins of the Moon could shape the future of human space exploration.
If a large asteroid impacted the Moon, would it cause problems for us here on Earth?
Mars has storms of dust, while Saturn pours down ammonia rain. Here on Earth, we passed through a debris tail to get a special kind of shower.
Terminators abound this week in space, and we’ll be back to Mars if NASA gets the budget it needs.
An unusual lunar feature, Saturn’s shining rings, and Mars’ complex gullies.
Take a look at some of our favorite recent space images and learn about an express mission to Mars.
Astronomers around the world are working to protect the Earth from asteroid impacts, with the help of Planetary Society members and donors.
This week in space: Mars days almost match up with ours, and light and molecules are created by distant stars.
The real science of aliens, the policy implications of ET, and new views of worlds beyond our own.
Two new grant-winning projects, a collection of awesome space imagery, a mighty plume, and much more this week in space.
We’re always learning more about the worlds of the outer Solar System, and even those beyond.
Whether they’re dedicated to it or not, planetary missions can get beautiful and informative glimpses at distant moons. And who’s the evil twin: Venus or Earth?