Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some ...

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

Giant Exoplanets in HR 8799 System Likely Formed Like Jupiter and Saturn The first exoplanet was discovered in the 1990s, but ...

The James Webb Space Telescope has spotted a 'rogue' cosmic object barrelling through our galaxy without a star, and covered ...

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

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 ...

In a scientific first, an international team of astronomers has 3D mapped the atmosphere of planet WASP-121b, also known as Tylos. Using the European Southern Observatory’s Very Large Telescope ...