ALT A small, black capsule, part of NASA's OSIRIS-REx mission, rests on a dry, flat desert landscape with sparse vegetation. In the background, a range of mountains rises under a clear blue sky. The capsule, used to return asteroid samples to Earth, features a circular yellow-orange marker on its side.

ALT A helicopter hovers in a clear blue sky, carrying a netted package attached to a long cable. Below, a person in a desert landscape watches the helicopter’s transport, with a distant mountain range visible on the horizon.

ALT Four scientists, dressed in full-body protective suits inside a sterile lab environment, examine a spacecraft component from the OSIRIS-REx mission. One scientist is taking photos while others work on the spacecraft’s delicate equipment.

ALT A group of scientists, dressed in full-body protective suits inside a sterile lab environment, carrying the OSIRIS-REx capsule.

ALT Pictured here is a bootprint on the Moon, made by American astronaut Buzz Aldrin during the Apollo 11 mission. The Moon's bumpy, gray surface stands out in sharp detail in this photo, as does the print, which is oval-shaped with thick lines running across its tread. Credit: NASA