Top Ten US EVA Missions of All Time: No. 4—'The Flights of Buck and Flash'

This iconic image, captured by astronaut Robert “Hoot” Gibson, shows Bruce McCandless participating in humanity’s first untethered EVA, aboard the Manned Maneuvering Unit (MMU). Photo Credit: NASA

When the crew of Mission 41B—the 10th shuttle flight and the fourth voyage by orbiter Challenger—released their official patch in the fall of 1983, it included […]

'Somebody Get a Camera': 25 Years Since the Launch of Hubble (Part 2)

Twenty-five years after its April 1990 launch, the iconic Hubble Space Telescope remains functional. Photo Credit: NASA

Twenty-five years ago, yesterday, on 24 April 1990, one of the most important missions in the annals of scientific discovery got underway, with the launch of NASA’s Hubble Space Telescope. As described in yesterday’s AmericaSpace history […]

'Monster Flight': 25 Years Since Launch of Hubble (Part 1)

The moment of deployment of the Hubble Space Telescope (HST), as seen from the IMAX Cargo Bay Camera (ICBC). Photo Credit: NASA

“If there were ever two missions that were completely opposite in terms of the public attention that was given to them,” astronaut Loren Shriver once said, “it would be my first […]

Traversing the New Frontier: The First 50 Years of Spacewalking (Part 6)

Terry Virts is pictured working on cable-routing activities in support of the future International Docking Adapters (IDAs) during EVA-29 on 21 February 2015. This was the first spacewalk in the 50th anniversary year since Alexei Leonov’s pioneering EVA. Photo Credit: NASA

Less than a month ago, on 1 March 2015, U.S. astronauts Barry […]

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 […]

'For One Priceless Moment': 45 Years Since Apollo 11 Changed the World (Part 4)

One of the relatively few images of Neil Armstrong at work on the lunar surface, close to Eagle. Photo Credit: NASA

On Sunday, 20 July 1969, the Mission Operations Control Room (MOCR) at NASA’s Manned Spacecraft Center (MSC)—later to become the Johnson Space Center (JSC)—in Houston, Texas, was filled with tension and expectant […]

To the Brink, From the Brink: Happy 24th Birthday, Hubble (Part 2)

Discovery rockets into the highest orbit ever attained by a shuttle on 24 April 1990. Photo Credit: NASA

More than two decades ago, this very week, one of the most important missions in the annals of scientific discovery got underway with the launch of NASA’s Hubble Space Telescope. This enormous, $1.5 billion observatory, […]

The Eighth Wonder: Happy 24th Birthday, Hubble (Part 1)

Since its inaugural deployment from the shuttle in April 1990, the Hubble Space Telescope has peered deeper into the cosmos than ever before in human history. Photo Credit: NASA

“If there were ever two missions that were completely opposite in terms of the public attention that was given to them,” astronaut Loren Shriver […]

'Plenty of People to Talk to Me': 30 Years Since First Untethered Spacewalk (Part 2)

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

Thirty years ago this week, in February 1984, NASA launched its 10th shuttle mission, with a five-man crew and a relatively “vanilla” pair […]

'To Face Their Wives': 30 Years Since First Untethered Spacewalk (Part 1)

This iconic image, captured by astronaut Robert “Hoot” Gibson, shows Bruce McCandless participating in humanity’s first untethered EVA. McCandless’ historic spacewalk with the Manned Maneuvering Unit (MMU) occurred 30 years ago this week. Photo Credit: NASA

Thirty years ago this week, in February 1984, NASA launched its 10th shuttle mission, with a five-man […]