3I/ATLAS was first spotted on July 1, 2025 by the Chile-based and NASA-funded Asteroid Terrestrial-impact Last Alert System, aka ATLAS. The observatory has four telescopes, one in South Africa, another in Chile, and two in Hawaii. The…
3I/ATLAS: Observatory That First Spotted Exocomet Compares The 3 Interstellar Objects Ever To Enter Solar System
