Moons orbiting rogue planets, worlds flung from their parent star systems into the cold of interstellar space, could maintain ...

A new study published in Monthly Notices of the Royal Astronomical Society has pinpointed the best planets for the search for ...

Rogue planet moons may stay warm for billions of years, with hydrogen atmospheres trapping heat and enabling liquid water.

The team compiled what they describe as a 'catalogue of opportunity' - a shortlist of worlds sitting in the so-called habitable zone, where conditions may allow liquid water to exist.