The detection of the molecule phosphine in a brown dwarf’s atmosphere may help astronomers in their search for life elsewhere ...

For decades, scientists have grappled with a profound question known as the Fermi Paradox: if the galaxy is teeming with the ...

(CNN)-- From a remote valley in Northern California, Jill Tarter is listening to the universe. Her ears are 42 large and sophisticated radio telescopes, spread across several acres, that scan the ...

It's highly unlikely life started organically on Earth, one expert suggests. But an extraterrestrial intervention might ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

NASA published tantalizing evidence that the red planet once harbored life. But Trump’s proposed budget could leave the ...

Georgia State Professor Stuart Jefferies says its one job is finding life beyond Earth by using light rather than sound.

Three years into its mission, the James Webb Space Telescope has advanced the search for alien life more than any machine ...

High-energy particles zipping through the cosmos are harmful to life on Earth, but scientists think it could be food for ...

Science fiction writer and futurist Arthur C. Clarke once said, “Two possibilities exist: either we are alone in the universe or we are not. Both are equally terrifying.” And perhaps that fear is what ...

Astrophysicist Lisa Kaltenegger explores the thrilling possibility of discovering life beyond Earth, highlighting how cutting-edge technology like the James Webb Space Telescope lets us analyze ...

We’re celebrating 180 years of Scientific American. Explore our legacy of discovery and look ahead to the future. In the late 1800s Italian astronomer Giovanni Schiaparelli pointed a telescope at Mars ...