Launch of NASA's Space Shuttle Endeavour Postponed Until Sunday

Space shuttle Endeavour's launch to the International Space Station has been postponed until Sunday to give technical teams more time to evaluate lightning strikes at the launch pad that occurred during thunderstorms Friday. Liftoff is scheduled for 4:13 p.m. PDT.News media and the public are invited to observe the live televised broadcast of Endeavour's launch in the Exploration Center at NASA