Cassidy Appointed Next Chief of Astronaut Office, Others Move to Management, As NASA Makes Commercial Crew Decisions

Chris Cassidy is helped from Soyuz TMA-08M by a group of supportive hands, including Chief Astronaut Bob Behnken (left) in September 2013. Behnken has now handed the reins of the Astronaut Office to Cassidy as the next chief. Photo Credit: NASA

Less than two years since returning from his most recent mission, and after […]

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. 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. 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 […]

'Big Mental Switch': Remembering Shuttle Endeavour's Maiden Voyage (Part 2)

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. Despite the trials and tribulations of the flight, she […]

'Where We Either Succeeded or Failed': Remembering Shuttle Endeavour's Maiden Voyage (Part 1)

In the first, and so far only, three-person EVA, astronauts Rick Hieb, Tom Akers and Pierre Thuot manhandle Intelsat 603 into Endeavour’s payload bay for the attachment of a new rocket motor. Photo Credit: NASA

“Ready. Ready. Grab!”

The words of Rick Hieb echoed through the silent Mission Control Center (MCC) at the Johnson […]

Stretching the Shuttle: 25 Years Since the EDO Decision

Columbia is approached by servicing vehicles on the runway on 7 December 1996, after concluding STS-80, the shuttle program’s longest Extended Duration Orbiter (EDO) mission. Photo Credit: NASA

Twenty-five years ago, this week, NASA and Rockwell International reached a historic agreement which would, both figuratively and literally, “extend” the shuttle and its myriad capabilities […]

Hubble Shows Evidence of Large Underground Ocean on Ganymede

From HubbleSite: “NASA’s Hubble Space Telescope observed a pair of auroral belts encircling the Jovian moon Ganymede. The belts were observed in ultraviolet light by the Space Telescope Imaging Spectrograph and are colored blue in this illustration. They are overlaid on a visible-light image of Ganymede taken by NASA’s Galileo orbiter. The locations of […]

'Since the Earth Cooled': 20 Years Since the Record-Setting Mission of STS-67 (Part 2)

Endeavour touches down at Edwards Air Force Base, Calif., on 18 March 1995, after almost 17 days in orbit. Photo Credit: NASA

Records are there to be broken, and in March 1995—20 years ago, this week—the crew of Endeavour was midway through what turned out to be the longest flight in shuttle program history […]

'Instant Daylight': 20 Years Since the Record-Setting Mission of STS-67 (Part 1)

Commander Steve Oswald leads the STS-67 crew out of the Operations and Checkout Building on the late evening of 1 March 1995, bound for a liftoff in the small hours of the following morning. Photo Credit: NASA

Twenty years ago, this week, seven astronauts, including four professional astronomers, were midway through what turned out […]