The Solar and Heliospheric Observatory isn’t just a powerful tool for studying the Sun; it’s one of the best comet hunters in existence.

A month-by-month spending reference for threatened NASA science missions.

NASA’s Perseverance rover has identified a potential biosignature on Mars.

NASA’s Perseverance rover has identified a potential sign of past life on Mars — not a definitive detection, but perhaps the most compelling hint yet.

How to support The Planetary Society's STEP Grant program.

In a milestone that reflects our expanding advocacy and outreach presence in Washington, D.C., Ari Koeppel will join The Planetary Society as the organization's first AAAS Science & Technology Policy Fellow.

Updates from a Planetary Society STEP Grant-funded project.

NASA's science budget is under threat. Here's what that could mean to the human endeavor of exploration.

On its 35th anniversary, a reflection on what the pale blue dot means to us.

Astrobiologists aren't just looking at other worlds to search for life; they're looking back to ancient Earth and considering alternate biochemistries.

Astronomers are closing in on planets that might be like our own.