Astronomy, Nasa | featured news

NASA's Dawn spacecraft on Saturday became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter.

Astronauts unlikely to match amount of work or danger involved for generations to come.

Though thunderstorms threatened, Atlantis was launched for NASA’s 135th and final shuttle flight, bound for the International Space Station with four astronauts.

NBC News’ Jay Barbree narrates a rare time-lapse video of the shuttle Atlantis being prepared for its final mission.

At $196 billion, the amount of money taxpayers spent during the lifetime of the space shuttle program seems astronomical.

When the United States embarked on its shuttle program decades ago, it set out to build a workhorse vehicle that would make space travel routine and beat the Soviets during the Cold War struggle for dominance in space.

NASA ordered the six crew members at the International Space Station to "shelter in place" Monday when space debris came tumbling toward the station's orbit.

Technological triumph or tragic mistake? NASA's final space shuttle launch sparks a debate over spaceflight's future.

NASA says a newly discovered asteroid will have a close encounter with Earth today, but there's no need to worry.

In the final move of its kind, NASA's space shuttle Atlantis was photographed earlier this month slowly advancing toward Launch Pad 39A, where it is currently scheduled for a July launch to the International Space Station. The mission, designated STS-135, is the 135th and last mission for a NASA space shuttle. Atlantis and its four-person crew will be carrying, among other things, the Multi-Purpose Logistics Module Raffaello to bring key components and supplies to the ISS.