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?

The question “are we alone in the universe?” has fascinated people for centuries. In 1959 two Cornell University physicists described how we might answer that question through interstellar ...

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

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

For decades, many scientists have relied on the "hard steps" model to suggest that intelligent life is rare — the improbable ...

CUNY York College and the American Museum of Natural History ...

In this edition of SETI AIR News we feature Bart Kuipers, one of our Cosmic Consciousness Residency recipients. The residency explores questions regarding intelligence, communication, and ...

Donate $150 or more and you can receive a state-of-the-art Mars Notebook! You can be part of history when you make a gift to the SETI Institute this Giving Tuesday. The November 26th arrival of NASA’s ...