By -
Darren Straight
CAPE CANAVERAL The countdown is on for the space shuttle Discovery and seven astronauts who, if all goes well, will be NASA’s first shuttle astronauts to reach space in years. At precisely 6:00 p.m. EDT (2200 GMT) Sunday, NASA began counting the days, minutes and seconds remaining before Discovery’s STS-114 mission is expected to launch into space. The spaceflight is