NASA has pushed back the launch of the space shuttle Endeavour again – to no earlier than May 10 – after mission managers determined that ground teams will need more time to complete repairs to one of the orbiter's power systems. Full story
The postponed launch of the space shuttle Endeavour on Friday (April 29) was not only disappointing for the thousands of spectators that flocked to the Florida coast to see the historic liftoff; the delay also carries a large price tag, NASA officials say. Full story
The Congresswoman from Arizona arrived at Cape Canaveral to watch the final launch of the Shuttle Endeavour. TODAY.com's Dara Brown reports.
Space shuttle Endeavour is set to launch on Friday for a 2-week trip to the International Space Station. Msnbc's Thomas Roberts talks with NASA administrator Charles Bolden.
Gabrielle Giffords reportedly greeted the news that she was "medically able" to travel to Kennedy Space Center for Friday's launch of the Shuttle Endeavour with a fist-pump and the word "awesome." NBC's Janet Shamlian reports.
NASA prepares to announce the museums that space shuttles Discovery, Endeavour and Atlantis will go to once the fleet is retired. NBC's Jay Gray reports.
Astronaut Mark Kelly resumes training for Endeavour's last mission as wife Gabrielle Giffords rehabs nearby. NBC's Jay Gray reports.
US President Barack Obama and First Lady Michelle Obama speak with Astronaut Mark Kelly , commander of the Space Shuttle Endeavour and husband of Arizona Congresswoman Gabrielle Giffords, alongside other Endeavour astronauts at the Launch Control Center Firing Room 1 after the Endeavour launch was s
This May 2010 photo released by NASA and provided by the Cape Cod Baseball League shows a baseball bearing the logo of the league as it floats in the cabin of the Space Shuttle Endeavour during its mission to the International Space Station. The ball was carried aboard the shuttle as one of the pers
Backdropped by a night time view of the Earth and the starry sky, the Space Shuttle Endeavour is seen docked to the International Space Station in this photo provided by NASA and taken on May 28, 2011. Picture taken on May 28, 2011.