23 hours 57 min ago
In November 2025, the ESA/Juice mission observed the interstellar comet 3I/ATLAS, a rare visitor from another stellar system. On this occasion, the MAJIS instrument detected emissions of water vapor and carbon dioxide, revealing strong cometary activity shortly after its closest approach to the Sun. These observations reflect the sublimation of ices buried beneath the surface, released due to solar heating. The outgassing rate, estimated at about 2 tonnes per second, indicates a particularly active process.
