1.   But if economic factors are included, our choices of future missions will be dramatically changed.

2.   Although Cassini is years from reaching Saturn, Dr. Porco is leading a small NASA advisory group studying future missions to the outer solar system.

3.   Another is to survey the geology and resources that might be used to support future human missions to the planet.

4.   Both the failures and the successes of U.N. operations need full airing so that the United Nations and its member states will be better prepared for future missions.

5.   A thorough Congressional evaluation of the past performance and future mission of the entire intelligence establishment would be a good place to begin.

6.   But NASA is under pressure from American lawmakers to prove that the space station is safe or scrub future joint Mir missions.

7.   But the two could produce critical geochemical, climatic and mapping information on where to look for answers on future missions.

8.   But what remained unresolved at this summit is the future mission of the new, expanded NATO.

9.   Clinton said, however, that the United States had not yet decided whether to send astronauts to the Mir on future missions.

10.   Clark and other NATO officials declined to discuss the type of aircraft or weapon involved in the attack, citing security for future missions.