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 […]

An ‘Operational’ Machine? Thirty Years Since STS-5 (Part 2)

With the completion of STS-5, NASA was able to publicly declare the Shuttle ‘operational’ for commercial and scientific missions. However, behind the scenes, its flaws were many and those flaws would grow and coalesce, producing the managerial, technical and cultural ingredients for disaster in January 1986. Photo Credit: NASA

Thirty years ago, this week, […]

An ‘Operational’ Machine? Thirty Years Since STS-5 (Part 1)

STS-5 was the first ‘commercial’ Shuttle mission and featured the deployment of two telecommunications satellites – one for Satellite Business Systems and another for Telesat Canada – but the true nature of the reusable spacecraft as an operational vehicle remained inherently dangerous. Photo Credit: NASA

Thirty years ago, this week, the Space Shuttle completed […]