After the Bennu sample capsule’s release, NASA renamed the OSIRIS-REx mission. Now called OSIRIS-APEX, the spacecraft will meet up with a 1,000-foot-wide asteroid called Apophis.

Apophis will miss the Earth by about 20,000 miles in 2029 — that’s closer than our own Moon.

OSIRIS-APEX will study the gravitational effects of the close pass on “the asteroid’s orbit, spin rate, and surface.”