21.   Researchers do not have enough time to gauge the effects of weightlessness in a week or two, says Crouch.

22.   Thagard, Dezhurov and Strekalov underwent more medical tests so U.S. researchers can gauge the effects of months of weightlessness.

23.   The outgoing U.N. administrator in Kosovo sought help gauging what effects, if any, the depleted uranium may be having on civilians.

24.   The changes have been fully tested by the leading teams, but the full effect cannot be gauged until the first practice session on Friday morning.