Space Shuttle Endeavor Lift-Off Moved Back Until at Least Sunday

While the last flight of the space shuttle Endeavor was supposed to be Friday, the launch was canceled due to concerns over a heater circuit. While initially there was talk about moving the launch to Sunday and then Monday, NASA administrators are now insisting that the earliest the shuttle will take off will be Sunday, May 8. In the meantime, the six astronauts are heading back to Texas for more training.