11.   But the astronauts went on to perform a record-tying five spacewalks over five days.

12.   But the problem never worsened, and the astronauts went on to perform five spacewalks over five days.

13.   But the astronauts went on to perform a record-tying five spacewalks over five days last week.

14.   One of three inertial measurement units aboard Endeavour malfunctioned early Thursday, setting off an alarm in the cockpit after the astronauts had gone to bed.

15.   On Sunday, two spacewalking astronauts will go out to connect all the cables between the truss and the Unity module.

16.   Thanks to the air lock, space station astronauts can now go out on spacewalks whenever they want wearing U.S. suits, rather than Russian ones.

17.   The astronauts will go out on four back-to-back spacewalks to wire up the pieces.

18.   There have been exchanges of environmentalists, and an American astronaut went to Iran to watch an eclipse.

19.   Two space station astronauts went out on a spacewalk Wednesday in a test of an American-made exit used only once before at the orbiting outpost.

20.   Tito said the U.S. astronauts went out their way to show him around.