NASA optimistic about shuttle launch - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

NASA optimistic about shuttle launch

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KENNEDY SPACE CENTER, Florida- The official forecast is still gloomy. But the sun has been peeking out from behind big puffy clouds at Kennedy Space Center, and NASA is increasingly optimistic about getting Discovery off the ground this morning.

The shuttle commander and pilot got the good news at their weather briefing just before heading out to the launch pad. Pam Melroy and her crew of six fellow astronauts smiled and waved as they walked out of their crew quarters to the cheers of NASA workers and friends.

They're getting strapped in and doing communications checks in preparation for a two-week assembly mission to the international space station.