We asked two eclipse chasers for tips on how to plan your big moment in the Moon's shadow.

Planetary Society members traveled to Washington, D.C., in September 2023 to advocate for the future of space science and exploration.

Some things are lost — Moon rocks, Io’s water, even (briefly) the Sun’s light — but what we find in space is so much greater.

A list of useful words and terms relating to lunar and solar eclipses.

Know what to expect ahead of time, and be prepared to experience a cosmic spectacle like nothing else in nature.

Discover what causes a comet’s color and what it might be like to listen to one whiz by.

A guide to how to make sure your solar eclipse glasses are safe and certified, plus tips on what to do — and what not to do — if you want to experience an eclipse without glasses.

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.

The spacecraft will drop off its precious samples of asteroid Bennu on Sept. 24, 2023.

See the month’s coolest space pictures, see planets in the night sky, and create the future in space that you want to see.

An interview with Scott Pace about the Moon’s role in internationally cooperative human space exploration.

Meet the asteroid hunters you help support.

How the origins of the Moon could shape the future of human space exploration.

Exploring humanity’s long relationship with the Moon.

China's mission will collect the first samples from the far side of the Moon.

From asteroid impacts to spacecraft landings (whether successful or not), the Moon is no stranger to being struck.

If a large asteroid impacted the Moon, would it cause problems for us here on Earth?

There's no comparison between a partial solar eclipse and a total solar eclipse.

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.