NASA is preparing to conduct its first spacewalk at the International Space Station (ISS) in nearly a year, ending an unusually long break for the activity. Truth be told, NASA had a spacewalk planned ...

Update: NASA has postponed the spacewalk due to a "medical concern with a crew member." NASA did not identify the astronaut, nor share details about the medical issue. A new date for the spacewalk has ...

Add Yahoo as a preferred source to see more of our stories on Google. A NASA astronaut will soon make history when he and one other step outside the International Space Station on the first spacewalk ...