On Feb. 7, 1984, astronaut Bruce McCandless II became the first “human satellite” when he performed the first test flight of NASA’s Manned Maneuvering Unit during STS-41B. Propelled by 24 small nitrogen-powered thrusters, the chair-like MMU allowed McCandless (who helped engineer the Unit at Lockheed Martin) to travel freely through space without any tethers or cords connecting him to a spacecraft. In the iconic image above, an edit of a photo captured by STS-41B pilot Hoot Gibson, McCandless is seen floating against the blackness of space. Here he was just a few feet away from the bay of the space shuttle Challenger, but he would eventually reach a distance of 320 feet (98 meters) from the orbiter!
A former Navy captain and previously Capcom for the Apollo 11 lunar mission, McCandless was 46 years old when he performed his historic tether-free EVA in 1984. This past Thursday, Dec. 21, 2017, Bruce McCandless II passed away at the age of 80.
“Our thoughts and prayers go out to Bruce’s family,” said acting NASA Administrator Robert Lightfoot. “He will always be known for his iconic photo flying the MMU.”