'Winging It': 30 Years Since the Dramatic Rescue of Mission 51I (Part 1)

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 Discovery touched down at the Shuttle Landing Facility (SLF) at the Kennedy Space Center (KSC) […]

'It's Gonna Be Great': 30 Years Since Shuttle Mission 51D (Part 1)

Spacewalkers Jeff Hoffman and Dave Griggs work to outfit a makeshift fly swatter onto the Remote Manipulator System (RMS) mechanical arm, in a fruitless attempt to activate Syncom 4-3’s deploy switch. Photo Credit: NASA

None of the 135 missions flown by NASA’s five-strong fleet of shuttle orbiters between April 1981 and July 2011 […]

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 […]

The Flight That Wasn't: 30 Years Since the Unflown Mission 51E (Part 2)

In its third incarnation, the mission of Karol “Bo” Bobko finally takes flight on 12 April 1985. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Three decades ago, the shuttle program appeared bulletproof. In 1984, astronauts embarked on untethered EVAs, deployed satellites and performed scientific research, retrieved and repaired the crippled Solar Max observatory, and […]

Jeff Hoffman, First 1,000-Hour Shuttle Flier, Turns 70 Today

During STS-75, Jeff Hoffman (left) and Franklin Chang-Diaz became the first and second humans to record 1,000 cumulative hours aboard the shuttle. Hoffman hit the record on 29 February 1996, with Chang-Diaz following on 8 March. In total, Hoffman accrued more than 1,211 hours (over 50 days) in space on five shuttle missions. […]