From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

NASA’s search for life beyond Earth is no longer a distant dream but a coordinated campaign that now stretches from Martian ...

The research is mounting up that we might not be alone in this big wide world. So what's the likelihood that aliens are out ...

Until now, scientists believed that Mars’ skylights – pits in the surface of mars – were formed by volcanic activity. But ...

A mysterious interstellar comet known as 3I/ATLAS is about to make its closest approach to Earth in December 2025. Here's everything to know about it.

(KTLA) — NASA on Wednesday released new images and data of Comet 3I/ATLAS, the rare interstellar object that set off weeks of speculation — and a full-blown online debate — over whether it could be an ...

New discoveries and fresh looks at familiar worlds show how far exoplanet science has come — and how much remains unknown. When you purchase through links on our site, we may earn an affiliate ...

NASA's Hubble Space Telescope caught a glimpse of 3I/ATLAS – again. For months, 3I/ATLAS has attracted plenty of attention – and become the source of bizarre alien spaceship conspiracies – as it ...

Nov. 20 (UPI) --NASA released images of the interstellar comet 3I/ATLAS flying past Mars and, based on the agency's observations, scientists expressed doubt that it is an alien spaceship. Space ...