Using an amateur radio setup, 10 children chatted with astronaut Donald Pettit about life on the International Space Station.

Two American astronauts stranded on the International Space Station who had their eight-day mission turn into an eight-month stay pushed back against allegations that they were "abandoned" in space.

Two American astronauts who have been trapped on the International Space Station since June could return to Earth earlier in March than expected, Nasa said Tuesday. Veteran astronauts Butch ...

Astronaut Suni Williams can be seen in this image of the ISS, if you know where to look. | Credit: Charline Giroud In an incredibly rare event, an amateur photographer on Earth has captured an ...

Jumping workouts could help astronauts prevent the type of cartilage damage they are likely to endure during lengthy missions to Mars and the moon, a new Johns Hopkins University study suggests. The ...