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 ...

Scientists have discovered unexpected water-ice clouds on a distant, Jupiter-like exoplanet, challenging current atmospheric ...

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

From still lakes to shifting shores, waves play a bigger role than we think—even on worlds we’ve never directly observed.

New research suggests that many planets previously considered promising for life may, in fact, be far less hospitable. A ...

Add Yahoo as a preferred source to see more of our stories on Google. This image of interstellar comet 3I/ATLAS was captured by the Hubble Space Telescope’s Wide Field Camera, July 21, 2025. (photo ...

Planets orbiting stars beyond the solar system come in all shapes and sizes but mostly fit into a few categories: large and hot gas giants, super-Earths that are slightly larger than our planet, ...

A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time.

It's one of the biggest unanswered questions in science: are there aliens out there, and if so, where are they hiding? Now, a discovery by NASA has raised the tantalising possibility that we're not ...

For decades, the search for alien intelligence has revolved around the question: if someone out there is listening, how could they hear us? A new study combining data from Penn State and NASA’s Jet ...

NASA has uncovered major new clues on Mars that could point to alien life. The space agency’s rover has found chemicals on ...

Billions of stars in our Milky Way galaxy have captured rogue alien planets that once cruised freely through interstellar space, a new study suggests. Many wandering alien worlds, which were ejected ...