Menoetius

Others are the 20-kilometre-long, football-shaped Leucus, and the pair known as Patroclus and Menoetius, which orbit one another and are both around 100 kilometres across.

The final flyby, of Patroclus and Menoetius, won’t happen until 2033.

After swinging past Earth to pick up speed, the spacecraft will, in 2033, fly to 617 Patroclus and Menoetius, binary asteroids that rotate around a common center of mass.

Then in 2033, Lucy will make its way to the swarm ahead of Jupiter, meeting up with two Trojans that orbit around one another, Patroclus and Menoetius.

In 2033, it will survey Patroclus and Menoetius, 100-kilometer-wide asteroids orbiting each other.