Did NASA Ignore Safety Warnings?; Disturding Questions Raised after Seven Astronauts Are Killed as Columbia Disintegrates at 200,000ftByline: TIM UTTON INVESTIGATORS have begun searching for clues to what went wrong by...Utton, Tim
(航天飞机) Discovery ended a flight that was successful in almost every respect but one: the dislodging of a big chunk of foam, like the one that doomed the Columbia. This flight was supposed to vault the shuttle fleet back into space after a prolonged grounding for repairs. But given ...