3I/ATLAS: Interstellar Comet or Hidden Alien Probe
Key Takeaways 3I/ATLAS is an interstellar comet discovered on July 1, 2025, by the ATLAS survey in Chile; it’s moving on a hyperbolic path (eccentricity ~6.1, velocity at infinity ~57 km/s), confirming it came from outside our solar system and will never return. NASA and major observatories describe it as a large, icy, outgassing comet—somewhere […]