
When the first confirmed interstellar visitor, 'Oumuamua, tumbled through our solar system in 2017, it left a trail of unanswered questions and a frantic scramble for data. Fast-forward to late 2025, and the arrival of the third such interloper, 3I/ATLAS (formally C/2025 N1), is proving that the cosmic curtain is finally being pulled back. While this latest guest is already beginning its long retreat into the void, the true story isn't just about what it is, but how we are about to find hundreds more like it.