1.   NASA on Monday postponed for at least a week the launching of the space shuttle Columbia, allowing engineers more time to analyze a potential solid rocket booster problem.

2.   Since late October, high winds and a potential solid rocket booster problem have forced a succession of launch delays.

3.   Before the latest delay, both previous launches of cargo ships this year were delayed because of booster problems.

4.   Both previous launches of cargo ships this year also were delayed because of booster problems.

5.   Engineers are studying a booster problem experienced by Atlantis last month.

6.   The launch of a Russian spacecraft carrying food and equipment for the Mir space station was stopped at the last moment Thursday when a computer spotted a booster problem.