61.   The error was fixed by special corrective mirrors installed on a later shuttle mission.

62.   THE UNHAPPY ASTRONAUT America, Russia and Japan are sending up a two year shuttle mission with one astronaut from each country.

63.   The new ultraviolet spectrograph telescope, designed specifically to study the torus, is scheduled to fly on four later shuttle missions.

64.   The other five astronauts are all space rookies, the first time so many new fliers have been included on a shuttle mission.

65.   The scientists said they hoped that their experiments might fly on a later shuttle mission.

66.   The senator was better off long before his shuttle mission, too.

67.   The space station lets scientists conduct these experiments over a period of months, not the mere weeks involved in a shuttle mission.

68.   The shuttle mission, known as Neurolab, will offer a flourish of scientific and technological firsts.

69.   The shuttle missions gathered data for days, not months or years, and thus disclosed relatively little about gradual terrestrial change.

70.   The shuttle missions to Mir are stepping stones to building a larger international space station, set to begin next year.