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July 16, 2014 -- Updated 1310 GMT (2110 HKT)
For thousands of years, man has looked to the stars in search of answers. Who are we? Why are we here? Are we alone?
June 29, 2014 -- Updated 1551 GMT (2351 HKT)
NASA's new flying saucer-shaped spacecraft has made its maiden flight.
July 22, 2014 -- Updated 1637 GMT (0037 HKT)
He may be best known for his part in the historic Apollo 11 moon landing in 1969, but did you know Buzz Aldrin snapped the "first space selfie?"
November 12, 2013 -- Updated 1033 GMT (1833 HKT)
Introducing GimBall -- a flying robot modeled on insects, which may change search and rescue missions forever.
July 22, 2014 -- Updated 1039 GMT (1839 HKT)
If you were the second person to set foot on the moon, what would you be worried about? For Buzz Aldrin -- it was a locked door. Find out why.
July 29, 2014 -- Updated 0947 GMT (1747 HKT)
Man has been making images of the moon for millennia. Explore our gallery of some of the most eye-catching creations.
The moon has always had a powerful grip on our imagination. Here's how the likes of Shakespeare and Twain have taken inspiration from this midnight muse.
July 10, 2014 -- Updated 1056 GMT (1856 HKT)
CNN's Becky Anderson looks at how practicing underwater is the perfect way to prepare for spacewalks.
July 16, 2014 -- Updated 1311 GMT (2111 HKT)
From Earth, the sun appears as a constant circle of light, but when viewed in space a brilliant display of motion is revealed.
March 28, 2014 -- Updated 1303 GMT (2103 HKT)
Inventor Glenn Martin admits he appears crazy -- "But it's the crazy people who change the world."...