NASA has discovered an interstellar comet that's wandered into our backyard. Luckily, it won't get near enough to be a threat to our planet.

Astronomers are meticulously tracking the new interstellar visitor that is crossing our solar system. Officially designated as 3I/ATLAS, this object is a comet that originated outside our solar system will soon make its closest approach to the Sun.

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object has been observed visiting our solar system.