Two astronauts have resumed work outside the International Space Station on a new European science laboratory.
Rex Walheim and Stanley Love began their spacewalk Friday morning, installing science experiments, including a solar monitor, to the exterior of the Columbus lab.
It is the third and final spacewalk during the U.S. shuttle Atlantis mission to the orbital outpost. Walheim and Love installed the European Space Agency lab Monday with help from crew inside the space station.
The Atlantis is set to return to Earth next week.
Some information for this report was provided by AP and Reuters.
