For more than a century, the idea that life might have arrived on our planet from elsewhere in the cosmos sat at the fringes ...

The early warning system to detect asteroids that pose a threat to Earth, operated by NASA and its collaborators around the world, got to flex its muscles. It successfully detected a small asteroid 6 ...

What would happen if aliens contacted us? It’s a longstanding question that now has at least a partial answer, after a transmission designed to mimic correspondence from an extraterrestrial ...

Researchers uncover how Mars affects Earth’s orbit, offering new insight into the planetary forces behind ice ages.