The ISS celebrated 15 years in orbit this week.
Astronaut James H. Newman waves during a spacewalk preparing for release of the first combined elements of the International Space Station. The Russian-built Zarya module, with its solar array panel visible here, was launched into orbit fifteen years ago on Nov. 20, 1998. Two weeks later, on Dec. 4, 1998, NASA’s space shuttle Endeavour launched Unity, the first U.S. piece of the complex. Endeavour’s forward section is reflected in Newman’s helmet visor in this image. During three spacewalks on the STS-88 mission, the two space modules built on opposite sides of the planet were joined together in space, making the space station truly international.
In support of station assembly and maintenance, station and shuttle crews have conducted 174 spacewalks totaling almost 1,100 hours – the equivalent to nearly 46 days of spacewalks to build and maintain the complex. The station, with a mass of almost a million pounds and the size of a football field, is second only to the moon as the brightest object in the night sky.