The cosmic wanderer that has fascinated the world since it was found last summer is finally getting ready to say goodbye for good. This week, the interstellar comet 3I/ATLAS is at its most visible, marking the end of its brief but historic stay in our Solar System.
It has traveled from the farthest reaches of the Milky Way. A group of dedicated astronomers is giving people one last chance to see this 'alien' visitor up close before it disappears into space forever.
