The latest images of an interstellar comet shared by NASA have captured how an array of spacecraft witnessed a flyby that was truly out of this world, revealing clues to the object’s composition.

Month-old photographs of a comet do not typically fuel conspiracy theories of an imminent alien invasion.

"This is a comet that formed in another solar system, most likely more than eight billion years ago - which means it is older than our solar system, and the oldest thing we've ever seen close up," Uni...