NASA called off a spacewalk that was to take place at the International Space Station over a medical problem that arose with an unnamed astronaut. Although the kind of medical problem the astronaut ...

ORLANDO, Fla. — NASA has postponed a spacewalk scheduled for Thursday at the International Space Station. NASA said the delay was due to a “medical concern” involving one of the crew members. The name ...

NASA astronauts planned to conduct two spacewalks in January to conduct repairs and upgrades to the International Space Station. The first spacewalk, which was set to take place on Jan. 8, was ...