space shuttles
discovery's o-rings pass launch test, Oct 11, 1988
discovery shuttle begins final leg back to the pad, Jul 01, 1988
discovery shuttle disaster effects linger on, Sep 25, 1988
discovery shuttle fuel leak threatens long delay, Jul 17, 1988
"discovery" shuttle moves closer to launch,NASA checks for safety, May 16, 1988
discovery shuttle poised to rocket u.s. back in space (picture), Sep 29, 1988
discovery space shuttle crew honors "friends" on challenger, Oct 01, 1988
discover space shuttle countdown still on, Aug 01, 1988
discovery space shuttle closer to launch, Jun 22, 1988
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