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Fifty-five years ago, when humans first walked on the moon, the Apollo 11 astronauts left Earth through the massive power of the Saturn V rocket. The greatest punch came from [...]

Butch Wilmore and Suni Williams will spend additional weeks in orbit as teams on the ground study malfunctioning thrusters on the Starliner spacecraft. Two NASA astronauts who traveled at the [...]

Bob Behnken and Doug Hurley returned to Earth in the first water landing by an American space crew since 1975. The first astronaut trip to orbit by a private company [...]

As they hurtled toward space faster than a rifle bullet, an American astronaut and a Russian cosmonaut were forced to make a harrowing but safe emergency landing on Thursday when [...]

MOSCOW -- Prospects seemed to dim on Thursday for a timely launching of a Russian rocket that would carry American astronauts to the International Space Station next month, with Russian [...]

KENNEDY SPACE CENTER, Fla. -- Normally, when NASA launches a space shuttle, there are either six or seven astronauts aboard. So why, on the 135th and final launching of the [...]

In a change of plans, astronauts aboard the space shuttle Endeavour will spend today studying plans for conducting a repair of the shuttle. Mission managers have not made a decision […]

Last year, as the Russian space station Mir suffered a fire, a collision and several major equipment failures, the top safety official for astronauts at the Johnson Space Center in […]

Astronauts on the space shuttle Columbia ignited drops of fuel today in an experiment intended to improve safety in space and reduce pollution on Earth. The fuel burned longer than […]