Two NASA astronauts will conduct a spacewalk today (March 18) that was delayed by the first-ever medical evacuation of the ISS, and you can watch the action live.

Two NASA astronauts aboard the International Space Station (ISS) are about to climb into their spacesuits and enter the ...

Two astronauts will conduct a spacewalk on Wednesday around the International Space Station to fix some solar arrays, NASA said.

Two NASA astronauts were planning to conduct a spacewalk outside the International Space Station on Thursday, but now, it appears they may be coming home early. Reading time 3 minutes A medical issue ...

Add Yahoo as a preferred source to see more of our stories on Google. A general view of the International Space Station (ISS) orbiting Earth. A spacewalk planned for Thursday outside the International ...

NASA astronauts are conducting a spacewalk to upgrade the solar panels powering the International Space Station. Watch here. (AP Photo) ...

Finally! A replacement crew has arrived at the ISS, and Suni Williams and Butch Wilmore will come home at last.

NASA astronauts conducted a 7-hour spacewalk Wednesday related to a modification kit for the solar panels powering the International Space Station. (NASA Photo) ...