A team of astronomers has, for the first time, measured both the mass and distance of a free-floating “rogue” planet using microlensing data from ground-based observatories and the space telescope Gaia. The object, catalogued as KMT-2024-BLG-0792 and OGLE-2024-BLG-0516 by separate teams, produced a microlensing event in which the gravity of
