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

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

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

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

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 ...

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

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

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

Mar. 5, 2025 — Within the next decade, space agencies plan to bring samples of rock from Mars to Earth for study. Of concern is the possibility these samples contain life, which could have ...