NEW YORK — Two space station astronauts hit pay dirt in orbit Aug. 16 after successfully replacing a vital pump to restore their spacecraft’s cooling system, which had been limping along at half-power ...

NASA engineers are working round-the-clock to firm up plans to send astronauts on two emergency spacewalks outside the International Space Station to repair a serious cooling system failure. The move ...

HOUSTON — Four astronauts will turn the international space station into an orbital construction zone during three complicated spacewalks . Working in teams of two, the spacewalkers and their fellow ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The apparentlysuccessful fix of a solar array-rotating gear and a recycling system that ...

Thisstory was updated at 3:58 p.m. ET. Twospace station astronauts hit pay dirt in orbit Monday after successfullyreplacing a vital pump to restore their spacecraft's cooling system, which hasbeen ...