

Launched on July 26, 2005 from the Kennedy Space Center in Florida, STS-114 was classified as Logistics Flight 1. The mission's third and final extravehicular activity included taking a close-up look and the repair of the damaged heat shield. Gap fillers were removed from between the orbiter's heat-shielding tiles located on the craft's underbelly. Never before had any repairs been done to an orbiter while still in space.
Mission Specialist Winston Scott is seen from inside orbiter Columbia as he conducts the second extravehicular activity on mission STS-87 in 1993.
Edwin 'Buzz' Aldrin Jr., pilot of the Gemini 12 spacecraft performs extravehicular activity during the second day of the four day mission in space in 1966.
This particular STS-114 photo from 2005 was taken by astronaut Stephen K. Robinson, mission specialist, whose shadow is visible on the thermal protection tiles on the bottom of the space shuttle.
Astronaut Dale A. Gardner, getting his turn in the Manned Maneuvering Unit, prepares to dock with the spinning WESTAR VI satellite during the STS-51A mission. Gardner used a large tool called the Apogee Kick Motor Capture Device to enter the nozzle of a spent WESTAR VI engine and stabilize the communications spacecraft sufficiently to capture it for return to Earth in the cargo bay of the space shuttle Discovery.
Astronaut Rick Mastracchio, STS-118 mission specialist, participates in the mission's third planned session of extravehicular activity as construction and maintenance continue on the International Space Station. During the 5-hour, 28-minute spacewalk, Mastracchio and astronaut Clay Anderson (out of frame), Expedition 15 flight engineer, relocated the S-Band Antenna Sub-Assembly from Port 6 (P6) to Port 1 (P1) truss, installed a new transponder on P1 and retrieved the P6 transponder.
Astronaut Soichi Noguchi, STS-114 mission specialist representing Japan Aerospace Exploration Agency (JAXA), participates in the mission's first scheduled session of extravehicular activity. Noguchi and crewmate Stephen K. Robinson (out of frame) completed a demonstration of Shuttle thermal protection repair techniques and enhancements to the International Space Station's attitude control system during the successful 6-hour, 50-minute spacewalk.
Astronaut Franklin R. Chang-Diaz works with a grapple fixture during extravehicular activity to perform work on the International Space Station. The first spacewalk of the STS-111 mission began with the installation of a Power and Data Grapple Fixture for the station's robotic arm on the complex's P6 truss. The PDGF will allow the robotic arm to grip the P6 truss for future station assembly operations.
Astronaut Michael E. Lopez-Alegria, STS-113 mission specialist, participates in the mission's third spacewalk. The International Space Station's Canadarm2 is visible in right frame.
Astronaut John B. Herrington, STS-113 mission specialist, traverses along the newly installed Port One (P1) truss on the International Space Station during the mission's second scheduled spacewalk. One of the station's main solar arrays is behind Herrington.
Astronaut Robert L. Curbeam, Jr., STS-116 mission specialist, prepares to replace a faulty TV camera on the exterior of the International Space Station during the mission's first of three planned sessions of extravehicular activity. Astronaut Christer Fuglesang (out of frame), mission specialist representing the European Space Agency, also participated in the 6-hour, 36-minute spacewalk.
Astronaut David A. Wolf, mission specialist, his feet securely planted in a restraint device on the end of the Space Station Remote Manipulator System (SSRMS) or Canadarm2, appears suspended over a heavily cloud-covered part of Earth. Astronauts Wolf and Piers J. Sellers were the assigned spacewalkers for this second STS-112 spacewalk as well as the two others.
Launched on July 26, 2005 from the Kennedy Space Center in Florida, STS-114 was classified as Logistics Flight 1. Among the Station-related activities of the mission were the delivery of new supplies and the replacement of one of the orbital outpost's Control Moment Gyroscopes.
In this photograph, a Skylab-4 astronaut performs Extra Vehicular Activities outside of the lab. This third crew spent 84 days in the orbiting laboratory. The solar observatory was designed for full exposure to the Sun throughout most of the Skylab mission. Solar energy was transformed into electrical power for operation of all spacecraft systems. The proper operation of these solar arrays was vital to the mission.
While anchored to a foot restraint on the end of the Orbiter Boom Sensor System, astronaut Scott Parazynski, STS-120 mission specialist, assesses his repair work as the solar array is fully deployed during the mission's fourth session of extravehicular activity while Space Shuttle Discovery is docked with the International Space Station.
STS-49, the first flight of the Space Shuttle Orbiter Endeavour, lifted off from launch pad 39B on May 7, 1992. The STS-49 mission was the first US orbital flight to feature 4 extravehicular activities, and the first flight to involve 3 crew members working simultaneously outside of the spacecraft.