When dust and rock come together, they form planets and moons. When people come together, we make a difference.

On March 24, 2025, The Planetary Society’s annual Day of Action brought more people than ever before to Washington, D.C., to advocate for space.

More planets and moons are being discovered all the time. It’s up to us to explore them.

Something weird is happening — something that, even as an astronomer, I once struggled to explain.

NASA science is under threat, and people are speaking up to defend it.

An edited interview transcript between The Planetary Society’s Chief of Space Policy Casey Dreier, Director of Government Relations Jack Kiraly, and Planetary Radio host Sarah Al-Ahmed about reports that the White House is considering a 25% cut to NASA’s topline budget in 2026, including a 50% cut to the Science Mission Directorate.

If you're an educator who goes above and beyond for your students, this is your chance to be recognized.

Reflecting on the last strategic era, and on to the next.

How an iconic magazine gets a makeover.

A Planetary Society-funded project uses machine learning to search for intelligent alien life.

How artificial intelligence could traverse other worlds

The future of AI in space.

Before artificial intelligence, there was human ingenuity.

How The Planetary Society helped bring Venus and Moon scientists to fight for missions on Capitol Hill.

Sunrise on the Moon kicks off Blue Ghost’s mission, including sampling lunar regolith with a technology supported by Planetary Society members and donors.

Colors can provide all kinds of clues in our efforts to unravel the mysteries of the Cosmos.

Member-submitted trivia questions and their answers.

Two missions approach the Moon, NASA dodges layoffs, and an artist captures the spirit of resilience.

With wide-reaching support, we're speaking up for space missions and sharing our love of space.

Space gets lovey-dovey this week with heart-shaped features, kisses blown on the solar wind, and reasons you should fall for fungi.