'Ready for a Margarita': 17 Years Since the Shuttle’s Second Hubble Servicing Mission (Part 2)

At the very “top” of the Hubble Space Telescope, astronauts Greg Harbaugh (left) and Joe Tanner work on the magnetometer cover task. Mark Lee compared Tanner’s ascent to riding his Harley. Photo Credit: NASA

Seventeen years ago this week, NASA launched its second shuttle Servicing Mission (SM-2) to the Hubble Space Telescope (HST). The […]

'A Lot of Unknowns': 17 Years Since the Shuttle's Second Hubble Servicing Mission (Part 1)

Barely illuminated by sunlight, Joe Tanner is pictured during EVA-4 on STS-82. Photo Credit: NASA

Seventeen years ago this week, NASA launched its second shuttle Servicing Mission (SM-2) to the Hubble Space Telescope (HST). The $1.5 billion observatory has earned itself a well-deserved reputation as one of the most successful space-based instruments ever launched. […]

'You and the Rest': Twenty Years Since NASA's Dramatic Hubble Repair Mission (Part 2)

Story Musgrave works at the end of Endeavour’s mechanical arm during activities to service the Hubble Space Telescope. Photo Credit: NASA

Twenty years ago this week, the singular space shuttle mission which marked the demarcation between past and future took place. Since the resumption of flights in September 1988, following the horrific loss of […]

'You and the Rest': Twenty Years Since NASA's Dramatic Hubble Repair Mission (Part 1)

Laden with tools and equipment, Jeff Hoffman waves from the end of the RMS arm during Hubble repair operations. Photo Credit: NASA

Twenty years ago this week, the singular space shuttle mission which marked the demarcation between past and future took place. Since the resumption of flights in September 1988, following the horrific loss […]

The Shuttle Flight That Did it All: Twenty Years Since STS-51 (Part 2)

Jim Newman (left) and Carl Walz at work in Discovery’s payload bay during STS-51. Their EVA involved several key tool tests, ahead of the ambitious Hubble Space Telescope servicing mission. Photo Credit: NASA

In the entirety of its 30-year operational career, none of the voyages of the space shuttle could be truly described as […]

Spitzer Space Telescope Celebrates 10 Years of Astronomical Discovery

The infrared vision of NASA’s Spitzer Space Telescope has revealed that the Sombrero galaxy—named after its appearance in visible light to a wide-brimmed hat—is in fact two galaxies in one. Image Credit: NASA/JPL-Caltech

Ten years ago tonight, NASA’s fourth “Great Observatory”—the Space Infrared Telescope Facility (SIRTF)—was boosted into orbit from Cape Canaveral Air Force […]