The International Space Station (ISS) where two NASA astronauts were stranded for nine months is so clean it's making crews sick, a new study suggests. Astronauts typically live on the orbiting ...

March 27 (UPI) --The uncrewed Cygnus spacecraft is scheduled to undock from the International Space Station Friday after having delivered more than 4 tons of supplies, scientific instruments used ...

NASA astronauts Sunita Williams and Butch Wilmore, along with astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov, ...