The Canals of Mars
We now know there's liquid water on Mars, according to NASA. But at the turn of the 20th century, we believed something else: that Mars had canals.
The Extinct Civilization of Mars
Liquid water has been detected on Mars. We explore the history of the search, and the astronomer, Percival Lowell, who shook the public imagination.
Gardening in Space
Zero-gravity gardening: why growing plants in space isn't the same as here on Earth.
NASA Sets Its Sites on Europa
NASA has decided on the nature and scope of a mission to Jupiter’s moon Europa, scheduled in the 2020s.
The Mercury Messenger Spacecraft: Going Out in a (Planned) Blaze of Glory
NASA's Mercury Messenger Spacecraft has crashed.
Watching the Twin Suns Rise on a Real-Life Tatooine
Twin suns, like the ones seen in Star Wars, may be more common than originally thought.