Mission scrubbed

CAPE CANAVERAL, Fla. - Thunderstorms forced NASA to call off Saturday's launch of Discovery, delaying the first space shuttle flight in a year by a day.

More bad weather was forecast for today and for the rest of the Independence Day weekend.

Storm clouds moved in and out of the launch zone throughout the morning and early afternoon, posing lightning threats. As the countdown held at the nine-minute mark, it became clear the weather would not improve, and launch director Mike Leinbach announced a one-day delay.