Blast off

CAPE CANAVERAL, Fla. - A grounded space shuttle. Countless months trying to fix foam insulation problems on the fuel tank. A faulty fuel tank sensor that delayed a launch in May.

If this list looks familiar, it should.

With a possible liftoff of Discovery just six days away, NASA is dealing with many of the same problems it faced almost a year ago in what could be called the space agency's version of the movie “Groundhog Day.”