Since the interstellar comet 3I/ATLAS was discovered this past July — just the third confirmed object to arrive from another star — astronomers have been closely following its passage through our solar system.
As the icy visitor brightened on its coast toward the sun, the public narrative brightened too, with online rumors casting it as a possible alien spacecraft during the recent 43-day-long government shutdown when NASA could not comment on the object or release new images. Last week, with the shutdown over, NASA held a long-awaited briefing in which it shared observations and early analysis from more than 20 missions across the solar system, assembling the most complete picture yet of this rare visitor — and made one point immediately clear: 3I/ATLAS is of natural origin, not an example of alien technology.
