CAPE CANAVERAL, Florida (AP) — After a two-day delay, NASA's countdown clocks began ticking Sunday toward the final launch of space shuttle Discovery.
A pair of gas leaks resulted in back-to-back launch postponements for Discovery. NASA test director Steve Payne said repairs took care of the problem and enabled the launch team to aim for a Wednesday liftoff.
Forecasters put the odds of good weather at 70 percent for the 3:52 p.m. (1952 GMT) liftoff.
Discovery is making its last trip to orbit. Its destination is the International Space Station. Aboard the shuttle is a pressurized compartment full of supplies — even a futuristic robot — that will remain permanently at the …






