As the largest spacecraft ever built, the International Space Station has been under construction for more than a decade. Here's a look at the ISS by the number.
In the history of NASA's 30-year-old shuttle program, Endeavour is the only shuttle to be named by children.
Why did it take almost four hours for the images of comet Tempel to be beamed to Earth from space? Life's Little Mysteries explains how weather and a computer glitch got in the way.
The Hubble Space Telescope has been a shining example of the advantage of having telescopes in space for two decades. Here's why.
The insides of Saturn's largest moon Titan are arranged like a slushy mix of rock and ice, the Cassini probe has found.
NASA has just received two science cameras, the latest models of the Mars Rover's Mastcams. The fixed focal length cameras will provide full color images and high-definition video.
A new device for space medicine that could help sick astronauts in space is about to get the ultimate test on NASA’s next space shuttle flight.
Six volunteers will lock themselves inside a mock spaceship in Russia for more than a year to simulate a Mars mission.
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