Doorway to the Future: 15 Years Since STS-104 (Part 1)

The Quest airlock, showing its wide equipment lock and its narrow crew lock, is maneuvered into position during STS-104. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

On 116 occasions in the past 15 years, white-suited spacewalkers from the United States, France, Russia, Germany, Sweden, Canada, Japan, Italy, and the United Kingdom have departed a stubby, […]

Expedition 45 First-Time Spacewalkers Ready for US EVA-32 on Wednesday

Kjell Lindgren (background) and Scott Kelly check out their Extravehicular Mobility Units (EMUs) in the Quest airlock, ahead of EVAs 32 and 33. Photo Credit: NASA/Twitter

Expedition 45 astronauts Scott Kelly and Kjell Lindgren are slated to venture outside the International Space Station (ISS) tomorrow (Wednesday, 28 October) for what has been described by […]

Top Ten US EVA Missions of All Time: No. 1—'One Small Step'

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 quiet. […]

Top Ten US EVAs of All Time: No. 2—'What We Came For'

Dave Scott works with the Lunar Roving Vehicle (LRV) on the slopes of Hadley Rille during Apollo 15. Photo Credit: NASA

More than four decades have passed since one of the most brilliant missions ever undertaken in the annals of space science. Apollo 15, launched in July 1971, carried U.S. astronauts Dave Scott, Al […]

Top Ten US EVA Missions of All Time: No. 3—’Repackage Our Margin’

Astronaut Story Musgrave is positioned to replace components at the end of Endeavour’s Remote Manipulator System (RMS) mechanical arm on STS-61 in December 1993. Photo Credit: NASA

More than two decades have passed since one of the most spectacular EVA missions in U.S. history: the long-awaited first servicing of the Hubble Space Telescope (HST). […]

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 in […]

Top Ten US EVA Missions of All Time: No. 5—'Just Building a Space Station'

Jim Newman waves to Jerry Ross’ camera whilst working outside the Unity node on STS-88. Photo Credit: NASA

For over 16 years, a bright star has nightly graced Earth’s skies, easily visible to the naked eye, serving to pique our curiosity and inspire our minds. Now, in 2015, the International Space Station (ISS) is […]

Top Ten US EVA Missions of All Time: No. 6—'We Can Fix Anything'

The salvation of Skylab, perhaps more so than any previous endeavor, validated the importance of Extravehicular Activity (EVA). Photo Credit: NASA

Construction and maintenance of an Earth-circling laboratory is nothing new in the 21st century, for dozens of humans from a multitude of nations have toiled in low-Earth orbit to assemble the International Space […]

Top Ten US EVA Missions of All Time: No. 7—’We've Got a Satellite!’

With the possible exception of Columbia and the very first space shuttle mission, few orbiters had as dramatic and exciting a maiden voyage as Endeavour. On STS-49, she provided a reliable stage for the longest EVA in history and the first three-man EVA in history. Photo Credit: NASA

“Ready. Ready. Grab!”

The words of […]

Top Ten US EVA Missions of All Time: No. 8—'It'll Be A Miracle'

Dale Gardner holds up the famous “For Sale” sign to commemorate the successful salvage operation on Palapa-B2 and Westar-VI in November 1984. Photo Credit: NASA

Early in February 1984, astronaut Joe Allen was at the Kennedy Space Center (KSC) in Florida, watching his former crewmate Vance Brand rocket into orbit aboard Challenger on Mission […]