Aliens have long been a staple of science fiction. Yet the possibility of intelligent life beyond Earth is more than a matter of imagination—it is also a subject of serious scientific inquiry.

What would our atmosphere look like if there were no life on Earth?

It’s a dizzyingly busy time for scientists searching for life on distant planets. To date, astronomers have cataloged more ...

This summer, exoplanet science—the study of planets orbiting stars beyond our sun—took a big step forward. Reports of helium gas escaping from the atmosphere of LHS 1140b propelled this exoplanet from ...

University of Washington researchers have published a 5-billion-year computational simulation of Earth without life, ...

Kristy Ambrose has been writing professionally since 2010. She dabbles in various genres, but her favorites are fantasy and science fiction. She creates everything from fanfiction to serialized novels ...

Astronomers have catalogued more than 6,000 planets beyond our solar system. None has settled the question that matters: is ...

A new study from researchers in Japan suggests that a better way to search for alien life might be to look for suspiciously similar planets that are close to each other. The idea is that if life has ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

Scientists believe there are planets outside our solar system where life is even more abundant and sustainable.