Possible New Moon Discovered Orbiting Distant Dwarf Planet Quaoar

2025-09-13
Possible New Moon Discovered Orbiting Distant Dwarf Planet Quaoar

Astronomers have unexpectedly discovered a possible new celestial body orbiting the distant Kuiper Belt dwarf planet Quaoar. This icy, egg-shaped dwarf planet beyond Neptune is already known to possess two rings and a moon. The discovery stemmed from a stellar occultation event, revealing an extra 1.23-second blockage of starlight, suggesting a new satellite or a third ring. James Webb Space Telescope data lends credence to the satellite hypothesis. This finding adds to the mystery surrounding Quaoar, challenges our understanding of ring and moon formation, and offers new insights into planetary system formation in the distant reaches of the Milky Way.