'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 could […]

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 salvaged […]