Scientists discovered that methyl halides, a gas produced by microbes, could be a biosignature for life on distant planets.

The intriguing chemistry of a rock collected by the Perseverance rover could trace to microbial activity—or not ...

New research published in The Astronomical Journal suggests another explanation for these strange worlds, and they might mirror a planet in our own system. Don't Miss: Today’s deals: $399 iPad ...

Strange aliens could be hiding in gases, scientists say - Gases could be found relatively easily and quickly with existing ...

Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

The gas giant WASP-121b, also known as Tylos, has an atmospheric structure unlike any we have ever seen, and the fastest ...

This striking satellite image, taken from Google Maps in 2021, shows a bizarre, jet-black ... These unusual ideas included a deep pit under the planet and a top-secret military base that had been ...