1.   Ambitious plans for physics, medical and biological research aboard the orbital outpost are in jeopardy as well.

2.   And until the program managers learn to live within their budget, NASA will assemble only the core of the orbital outpost and postpone the addition of several modules.

3.   As it pulls away from the orbital outpost, Endeavour will leave behind three new tenants.

4.   A more elaborate attempt is planned for Monday as the crew of the shuttle Discovery departs the Russian orbital outpost after a four-day visit.

5.   After a break for Christmas, the three-man crew of the international space station plans to re-dock a troublesome Russian Progress cargo capsule with the orbital outpost.

6.   After settling into orbit, Endeavour was on course to rendezvous with the orbital outpost early Saturday.

7.   During the stay, they intend a major expansion of both U.S. and Russian scientific research activities aboard the orbital outpost.

8.   Each time, the failure sends the orbital outpost temporarily rolling slowly out of control.

9.   Helms remained in a pressurized segment of the orbital outpost during the operation and monitored the activities of the two men over a video communications system.

10.   If successful, the venture could open the door to further commercial activities aboard the new orbital outpost.