Interstellar Objects and the New Solar System | Chris Lintott
Perimeter Institute for Theoretical Physics · 52:41 · Watch on YouTube
3I/ATLAS, found by the ATLAS survey in Chile on 1 July 2025 and racing through the Solar System at about 65 km/s, is only the third known interstellar object, but this Perimeter lecture treats it as a galactic sample:...