Mision Specialist Bruce McCandles II is seen further away from the confines and safety of his ship than any previous astronaut has ever been. This space first was made posible by the Manned Manuevering Unit or MMU, a nitrogen jet propelled backpack. After a series of test maneuvers inside and above Challenger's payload bay, McCandles went 'free-flying' to a distance of 320 feet away from the Orbiter. This stunning orbital panorama view shows McCandles out there amongst the black and blue of Earth and space.
© National Aeronautics & Space Administration / Science & Society