1.   The shuttle allows astronauts to float in space and wrangle with wayward satellites or space telescopes that need updating.

2.   The astronauts floated a few supplies in and out of the station.

3.   The hatches between the spacecraft swung open a few hours later, and the seven shuttle astronauts floated into the station one by one.

4.   Two space shuttle Discovery astronauts floated outside early Tuesday and prepped the international space station to receive a robotic arm while also fixing a sticky solar-panel latch.

5.   Two space shuttle Discovery astronauts floated outside Saturday to begin laying the groundwork for future construction on the international space station.

6.   Two space shuttle Discovery astronauts floated outside Thursday to install a container with spare ammonia and set up a science experiment on the outside of the international space station.

7.   Two spacewalking astronauts floated out of the international space station on Sunday to do more wiring work on a newly attached girder.

8.   Two spacewalking astronauts floated outside early Tuesday and finished a critical wiring job on the international space station.

9.   Two spacewalking astronauts floated outside early Tuesday to finish a critical wiring job on the international space station.

10.   Two space shuttle Discovery astronauts floated outside Thursday and installed a container with spare ammonia on the outside of the international space station.