Many launches at Kennedy and Cape Canaveral Air Force Station are scrubbed because they are within "Lightning Alley."
Weather challenged pathfinder team for Discovery's piggy-backed return to Kennedy Space Center.
Models join flags and medallions as commemorations of Discovery's flight to the International Space Station.
Returning shuttle crews are checked out by NASA's medical professionals.
In a wildlife refuge keeping a landing shuttle safe is an important job.
Liftoff marks the beginning of the workday for a group of engineers who evaluate damage to the pad after launch.
The crews of space shuttle Endeavour and the International Space Station installed the final pieces of Japan's Kibo laboratory.
Kennedy's launch processing team moved into high gear to prepare for liftoff.
Take one space shuttle, seven highly trained astronauts, tons of equipment, and one legendary orbiting telescope and you have the 5.3 million-mile odyssey that was Hubble's final servicing mission.
Tool designers at NASA's Goddard Space Flight Center had to invent several new instruments for the STS-125 mission.
Engineers spent two years designing and building what is suddenly the most famous treadmill in the world - or above it.
The astronauts of Atlantis will mark their mission with a wide array of commemorative items they take into space.
The International Space Station is beautifully balanced and "powered-up."
NASA’s Space Shuttle Program hands over the Mobile Launcher Platform-1 to the Constellation Program at a Kennedy Space Center ceremony on March 25.
Local Teachers Cheer an Astronaut of Their Own
The astronauts are carrying mementoes to space that reflect their unique backgrounds.
On launch day, a space shuttle astronaut's first challenge isn't handling the force of liftoff or adjusting to microgravity -- it's getting dressed.
The astronauts of STS-126 acted as craftsmen, mechanics, spacewalkers and, of course, astronauts during International Space Station mission.
When a shuttle lands anywhere but Kennedy Space Center, it gets a piggyback ride back to its home base.
NASA's space shuttles have a few landing sites to choose from.