Repair and Salvage: The First 50 Years of Spacewalking (Part 4)

During his historic untethered EVA with the Manned Maneuvering Unit (MMU) on 7 February 1984, Bruce McCandless ventured as far as 300 feet (90 meters) from Challenger. Photo Credit: NASA

Ironically, the spacecraft from which the most Extravehicular Activities (EVAs) were performed—the space shuttle—was not originally intended to carry the capability for spacewalking at […]

Fixing Solar Max: 30 Years Since Mission 41C (Part 2)

Backdropped by the glorious Earth, Challenger drifts serenely with Solar Max secured in her payload bay. Photo Credit: SpaceFacts.de

Thirty years ago today (6 April 1984), the shuttle launched on arguably its most ambitious mission to date: a mission which would demonstrate the reusable orbiter’s capabilities of rendezvous, retrieval, satellite repair, and spacewalking with […]

Fixing Solar Max: 30 Years Since Mission 41C (Part 1)

Thirty years ago this week, Mission 41C put the shuttle’s capabilities to the test. In a single flight, the reusable vehicle demonstrated its capacity to support satellite deployment and retrieval, rendezvous and proximity operations, untethered spacewalking and robotics … and served as a highlight of the ingenuity of the human spirit. Photo Credit: SpaceFacts.de

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'Crankin’ APUs': Mission 51I and NASA’s ‘Can-Do’ Spirit

In a triumphant ending to a triumphant space salvage, James “Ox” van Hoften strikes a Charles Atlas pose on the end of the shuttle’s RMS mechanical arm, seemingly hoisting the world on his shoulders. Photo Credit: NASA

When Space Shuttle Discovery touched down in Florida on 19 April 1985—suffering seized brakes and enduring a […]