Glitch makes NASA cut short Endeavour spacewalk

Glitch makes NASA cut short Endeavour spacewalk

May 20th, 2011 by Associated Press in Local - Breaking News

In this image made from NASA Television astronaut Andrew Feustel,is shown during the first spacewalk Friday May 20, 2011. According to NASA this is the 245th spacewalk conducted by U.S. astronauts. The astronauts will retrieve three experiments outside the station, install a new one and do maintenance work. (AP Photo/NASA)

HOUSTON - NASA managers cut short Friday's spacewalk by two Endeavour astronauts because one of their carbon dioxide sensors stopped working.

The astronauts were nearly five hours into a routine planned six-and-a-half hour spacewalk at the International Space Station when mission controllers noticed that Gregory Chamitoff's spacesuit sensor wasn't working. NASA needs to know if levels of carbon dioxide - expelled when you breathe - get too high.

The levels were probably not too high, but the decision was made because of the lack of information. Chamitoff and spacewalking partner Drew Feustel were about to start a 45-minute task to finish installing an antenna on the space station, but controllers figured that would take too much time. They started clean-up tasks instead.