A school-bus-sized asteroid is expected to spend about two months orbiting Earth as a "mini moon" as it gets temporarily caught by Earth’s gravity.

Asteroids from the Earth pass by all the time but we are expecting a friendly visitor staying around for the next couple months.

“Earth can regularly capture asteroids from the Near-Earth object (NEO) population and pull them into orbit, making them mini-moons,” the RNAAS information reads. “Sometimes, these temporary captures do not complete one revolution before dropping out of orbit and returning to their regular heliocentric trajectories.”