The Moon is shrinking in both actual volume and its apparent size from Earth’s perspective. We explain how scientists know this, why it happens, and how it might affect Earth.

Jupiter has much more going on beneath its outer clouds, and NASA invites players to unravel a fictional mystery.

China's Queqiao-2 spacecraft will relay communications to Earth to support lunar far side and south pole missions, including missions led by international partners.

Funding for the Near-Earth Object Surveyor, support for VERITAS, and a second lease on life for Mars Sample Return were all included in the final congressional budget for NASA in 2024.

There are hundreds of eclipse events being held all across North America. Here's how to find one near you.

A moon transiting the Sun is awesome, but still doesn’t quite compare to a total solar eclipse. Learn why, find out about Europa Clipper’s message in a bottle, and more.

Twenty years ago, a Planetary Society program sent students to NASA's Jet Propulsion Laboratory to work on the Mars Exploration Rovers program.

The White House proposed $25.4 billion for NASA in 2025, a modest increase from the previous year, and far less than originally planned.

How scientists use total solar eclipses as opportunities to do solar science.

Announcing the first C. Wallace Hooser award for visionary philanthropy

Why eclipses on Earth are unlike anything else in the Solar System.

The Curiosity rover is climbing a mountain to gain knowledge. Bringing back Mars samples will gain us even more.

The project has the potential to transform our understanding of the Solar System and provide evidence of life beyond Earth.

The Odysseus spacecraft marks the return of U.S. landers to the Moon. JAXA wants you to help name an asteroid. And we’re speaking up for your place in space.

A U.S. mission lands on the Moon for the first time in decades, thanks to collaboration between NASA and commercial space.

Ridges on Mars and Europa hint at past and present water. Distant dwarf planets are unexpectedly warm. And we’re working hard to help find life.

Though promising conceptually, Starship presents more questions than answers for NASA's Mars Sample Return needs.

The NASA probe is on a mission to the potentially dangerous asteroid Apophis

Hosting a solar eclipse-watching party is a fantastic way to share one of nature’s most awe-inspiring events with your friends and family. Here’s a guide to hosting a safe and memorable eclipse-watching party.

Some things, like solar cycles, are hard to predict. Others, like Zoozve taking the world by storm, are even more unpredictable.