Shuttle launch pushed back again

CAPE CANAVERAL, Fla. - The US space agency NASA on Friday delayed again, to no earlier than May 16, the date of shuttle Endeavour's launch for a servicing mission to the International Space Station, officials said.
The already-postponed flight, the next-to-last in the shuttle program, has been on hold since April 29 when a problem developed with one of the ship's auxiliary power generators about four hours before the scheduled lift-off.