Two astronauts — one European and one Russian — exited the airlock on the International Space Station for a spacewalk on Thursday, marking the first time in more than 20 years such a joint endeavor has taken place.
Samantha Cristoforetti, an Italian astronaut with the European Space Agency, and Russian cosmonaut Oleg Artemyev entered the vacuum of space in their puffy white spacesuits before 11 a.m. ET, and they’re expected to spend about seven hours working to install a 36-foot-long robotic arm on one of the space station’s modules.
