Armstrong made his "historic leap for mankind" when he walked on the moon on July 20, 1969. But three years earlier, he’d performed another, salvaging a mission that could have derailed the space...
Astronauts likely would not have survived the nearly three-year journey on existing spacecraft, a former astronaut said.
Almost two-thirds of respondents thought climate and asteroid monitoring should be top priorities for the agency.
Astronauts Drew Feustel and Rocky Arnold will spend more than six hours outside of the ISS Wednesday.
Astronauts on the International Space Station do not even have sinks because of the way water behaves in microgravity.
Space has a lot of ways to kill you, and one is getting worse.
Wearable technology will use wireless sensors to monitor an astronaut's wellbeing and make automatic adjustments in their environment to make them more comfortable.
The storm could smell like rotten eggs, according to scientists.
Astronauts have to exercise two hours a day to stay healthy—but it may cause dangerous side effects.
Three more astronauts have arrived at the International Space Station.
The ISS shared videos of the moment of impact.