Overview: The newly confirmed interstellar comet 3I/ATLAS has just completed its closest pass to the Sun and is now speeding back toward the outer reaches of space. Discovered by the ATLAS survey in Chile, this cosmic visitor has surprised scientists with its unusual gas makeup and shifting colors. Unlike previous interstellar objects, 3I/ATLAS has shown … Continue reading 3I/ATLAS: The Third Interstellar Visitor Leaves the Solar System After a Fiery Fly-By