Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar comet 3I/ATLAS. Experts tell Live Science how they are planning to observe the cosmic visitor.

Formed around a distant star elsewhere in the Milky Way, it is an interstellar wanderer, not a merely interplanetary one. That realisation sparked a scramble. “It’s been full gas for the past week,” says John Noonan,