NASA has set July 8 as the target date for the final space shuttle launch. Atlantis will be carrying up a final load of supplies and equipment for the International Space Station.
As for the current shuttle mission, NASA today had to cut short a task on an otherwise routine spacewalk by two Endeavour astronauts because of a problem with a spacesuit sensor, but most of their work was already done.
The astronauts were nearly five hours into the spacewalk when controllers noticed that the carbon dioxide sensor on one of the suits wasn't working. Even though the carbon dioxide levels were probably not too high, officials decided to skip the last task of installing an antenna. But after cleanup work and other tasks, the spacewalk still lasted nearly as long as scheduled.
Endeavour's astronauts will make four spacewalks during the 16-day mission, which ends June 1.
This is Endeavour's last flight and the second last of the space shuttle program.