Astronomers using ESO’s Very Large Telescope have identified candidate evidence for an exomoon orbiting a brown dwarf in the CD-35 2722 system, a discovery that could represent the first confirmed detection of a moon outside the Solar System. The system contains a star about half the Sun’s mass and a brown dwarf, and the exomoon candidate is massive, comparable to Jupiter, and circles the brown dwarf rather than a planet. The study, led by Kevin Hoy of the European Southern Observatory and Universidad Diego Portales, employed radial‑velocity observations with the CRIRES+ instrument, detecting wobbles that indicate an object at least Jupiter‑mass orbiting the brown dwarf. Co‑author Alice Zurlo said the finding challenges conventional definitions of planets and moons. No exomoon has been confirmed despite thousands of exoplanets, and earlier candidate detections have remained inconclusive. The object’s mass makes it more planet‑like yet it does not orbit a star, complicating classification, and the team expects further observations with the upcoming Extremely Large Telescope to clarify its nature. If confirmed, the detection would expand understanding of planetary system formation and demonstrate the capability of current and future astronomical facilities.