Here’s what you’ll learn when you read this story: The Search for Extraterrestrial Intelligence (SETI) focuses on finding technosignatures—potential signs of alien technology. If we look carefully, we might have a chance at detecting their ...

A new study suggests alien life may be easier to detect through clusters of similar planets rather than single biosignatures.

Aristotle believed the planets revolved around Earth and God could not have created other worlds. Today, scientists scour the surface of Mars for ‘biosignatures’ of microbial life.

We have no idea what kind of life may exist on other planets, so it’s hard to know what to look for. Proxima Kósmos imagines a very different kind of solar system that could harbor life-forms we haven’t yet thought of.

In a new study, researchers from Penn State and NASA’s Jet Propulsion Laboratory analyzed human deep space communications and found that human transmissions are frequently directed toward our own spacecrafts near Mars (lower left), the Sun, and other planets

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The SETI Institute's Allen Telescope Array in Northern California searches for ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time. If life spreads and changes planetary environments, it could leave behind statistical clues linking planets together.

"It was just a matter of time before we found them." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on rocket launches, skywatching events and more!

Maintaining liquid surface water is one of the preconditions that a planet has to meet in order to support life as we know it.