Posted: August 30, 2023 11:17 pm ET | Last Updated: August 30, 2023 11:58 pm ET | NASA's OSIRIS-REx asteroid sample return mission will return to Earth on September 24, 2023, bringing back about 250 grams of material from the asteroid Bennu. That is the start of what NASA calls Asteroid Autumn because two other important asteroid-related events will soon take place. In October, the launch of Psyche, and in November, Lucy's close approach to an asteroid in the main asteroid belt.