11.   Astronauts begin experiments in orbiting lab.

12.   Late Sunday, the astronauts began hooking up interior cooling lines and jumper cables between the air lock and the rest of the space station.

13.   The shuttle should arrive Wednesday, and a day later the astronauts will begin installing the girder that will serve as a backbone for the space station.

14.   The shuttle should arrive on Wednesday, and a day later the astronauts will begin installing the girder that will serve as a backbone for the space station.