00:00Astronomers may have found the first moon beyond our solar system.
00:03The candidate orbits a brown dwarf in a young system called CD35272.
00:09A brown dwarf is bigger than a planet, but too small to be a star.
00:13That brown dwarf, in turn, orbits a star about half the sun's mass.
00:17The possible moon is at least as massive as Jupiter.
00:20The brown dwarf it circles is more than 30 times Jupiter's mass.
00:25Astronomers use the Criers Plus instrument on ESO's Very Large Telescope.
00:29They tracked tiny wobbles in the brown dwarf's motion caused by the hidden companion.
00:34More than 6,000 exoplanets are known, but no exomoon has been confirmed.
00:39The team calls this the first plausible detection of an exosatellite.
00:44ESO's future Extremely Large Telescope, with a 39-meter mirror, could find smaller moons.
00:50If confirmed, this giant could blur the line between moons and planets.
00:54Disclosure, this video contains stock footage and content created or enhanced using AI-assisted tools.
