What if billions of years ago, the Red Planet had rain, snow, and even rivers that carved out landscapes much like those we ...

Stunning stellar explosions occur every second across the cosmos – some observable, most too distant to ever know, all of ...

When we think about asteroids that could threaten Earth, we often imagine massive, city-sized rocks hurtling through space. But what if the real danger comes from much smaller, barely detectable ones?

This spring, skywatchers have been treated to the captivating and unpredictable display of a new comet, called C/2025 F2 ...

The White House has proposed unprecedented cuts to NASA’s budget - the largest in the agency’s history. If approved, this withdrawal of funding would force the cancellation of many major programs, ...

For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable result of a series of unlikely evolutionary leaps. But new research by ...

Madhusudhan et al. just reported ~3 sigma detection of dimethyl sulfide (DMS) or dimethyl disulfide (DMDS) in the atmosphere of K2-18 b in the Astrophysical Journal Letters. The claim is intriguing, ...

A new hypothesis from SETI Institute scientist Dr. Janice Bishop and Dr. Melissa Lane from Fibernetics in Pennsylvania could explain how early Mars may have had water on its surface, similar to Earth, ...

April 23, 2025, Mountain View, CA – The SETI Institute will recognize Dr. Joseph Twicken, Senior Data Scientist at the SETI Institute, with its 2025 Carl Sagan Center (CSC) Director’s Award. Now ...