Astronauts made a rare, hastily planned spacewalk to fix a serious ammonia leak at the International Space Station, and the U.S. space agency said it appeared the repair was a success.
An American astronaut found water pooling inside his helmet after he finished a six-plus hour spacewalk on Wednesday, raising new concerns about the safety of NASA's spacesuits.
Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a new study by an international team of researchers led by York University ...
The U.S. space agency has postponed its plan to send a "flying saucer" into Earth's atmosphere to test technology that could be used to land on Mars.
The $100-billion International Space Station will be extended by four years, or until at least 2024, allowing for more global research and scientific collaboration, NASA said Wednesday.
A commercial cargo ship made its successful debut Wednesday, rocketing toward the International Space Station and doubling the number of NASA's private suppliers for the high-flying lab.
Scott Carpenter conquered the heights of space, the depths of the ocean, and the darkness of fear. And in doing so he became the second American to orbit the Earth, powered by not just a rocket but an insatiable curiosity.
NASA's quest to send astronauts out into the solar system begins this week with a two-laps-around-Earth test flight.
Is your cable television on the fritz? One explanation, scientists suspect, may be the weather—the weather in space, that is. MIT researchers are investigating the effects of space weather—such as solar flares, geomagnetic ...