My job is to make sure it isn't three.

We want to make sure we have a really good set of cutoff sensors, because, after all, that is a critical function and we want to be safe when we fly.

Having three operational vehicles in the fleet affords the shuttle program great schedule flexibility as we move toward flying safely and completing the international space station.

I'm not sure Taylor has the political savvy for the job.

We've had 10 poles, we've won four races - that's more than anybody else has.

There are a total of 34 ice frost ramps on the external tank.