The Nation

Top NASA officials decided to conduct a third test of the space shuttle's troublesome solid rocket boosters before attempting the first post-Challenger mission. After daylong meetings with engineers and the space agency's management council, shuttle program director Arnold D. Aldrich said he decided to "review the readiness" of the boosters before setting the date for the next launch. The shuttle Discovery had been scheduled to blast off in June on the first American manned space flight since Challenger's destruction two years ago Thursday. But the failure of a booster nozzle "boot ring" in a rocket test firing Dec. 23 put the flight on hold.

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