Red Dog's Pack: 20 Years Since STS-69 (Part 2)

Spectacular view of Hurricane Marilyn, centered over the Caribbean Sea, during the STS-69 mission in September 1995. Photo Credit: NASA

Two decades have now passed since an 11-day period in September 1995, when the “Dogs of War” barked, woofed, and yelped their way through a remarkable mission which put virtually all of the space […]

Red Dog's Pack: 20 Years Since STS-69 (Part 1)

Mike Gernhardt, pictured during his EVA with fellow astronaut Jim Voss, on STS-69. Photo Credit: NASA

On the morning of 7 September 1995—20 years ago, last week—five astronauts, clad in bulky orange pressure suits, departed the Operations & Checkout (O&C) Building at the Kennedy Space Center (KSC), bound for Pad 39A and their ride […]

Sinkholes on Titan: New Study Shows How Hydrocarbon Lakes May Form by Earth-Like Erosion

Wider view of lakes and seas near Titan's north pole. Image Credit: NASA/JPL-Caltech/ASI/USGS

Colored mosaic of lakes near Titan’s north pole. Image Credit: NASA/JPL-Caltech/ASI/USGS

Saturn’s largest moon, Titan, has seas and lakes of liquid methane and ethane dotting its surface, but one question scientists have been trying to figure out is how the hollows in the ground, which hold the lakes, form to begin with. Now, a […]

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 […]

'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 […]

Whoa! Opportunity Discovers Matchless Purplish Rocks at Spectacular Mars Overlook

NASA’s Opportunity Rover scans along a spectacular overlook towards Marathon Valley on March 3, 2015, showing flat-faced rocks exhibiting a completely new composition from others examined earlier. Marathon Valley and Martian cliffs on Endeavour crater hold deposits of water altered clay minerals. This navcam camera photo mosaic was assembled from images taken on Sol […]

'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 […]