A rare interstellar comet will make its closest approach to Earth this week, offering scientists an unprecedented opportunity to study material from outside our solar system. For astronomers, planetary scientists, and anyone who has ever gazed up at the night sky and wondered what lies beyond, a profoundly rare celestial event is upon us: the close approach of Interstellar Comet 3I/ATLAS.
On Friday, 19 December, this extraordinary cosmic nomad will reach its closest point to Earth, marking a truly key moment in its fleeting journey through our Solar System. The discovery of 3I/ATLAS in July by the NASA-funded ATLAS telescopes in Chile sent a quiet jolt of excitement through the scientific community. It is only the third confirmed interstellar object ever known to have passed through our cosmic neighbourhood, following in the enigmatic footsteps of 1I/'Oumuamua in 2017 and comet 2I/Borisov in 2019.
