Neptune's moon Tritan is unusual in that it is geologically active and has a retrograde orbit.
Armchair astronomer David Martines discovered what he believes to be a building on the surface of Mars.
The solar panels that will power the Juno spacecraft on its trip to Jupiter have completed their testing.
After seven years a mission that was supposed to last only three months has finally come to an end.
US company plans to offer space flight tours including a breathtaking trip around the moon.
A Californian woman was arrested in a sting operation trying to sell a moon rock for $1.7 million.
European scientists have declared a nearby planet with Earth-like conditions to be habitable.
Io has a massive global reservoir of molten lava 30 miles deep powering its fierce and active volcanism.
In a spectacular event Venus, Mercury, Mars and Jupiter will all line up in the sky this Friday.
NASA are planning to pick from three possible destinations for a $425 million mission in 2016.
When Apollo 12 returned to Earth in 1969, microorganisms were found on one of the cameras.
ESA and NASA may be working together to develop a new automated space station supply vessel.
China's most renowned astronaut Yang Liwei has called for future cooperation between the two countries.
Millionaire Dennis Tito became the world's first space tourist on an eight day trip costing $20m.
China has unveiled plans to build a multi-module space station within the next ten years.
The new underground Einstein telescope could allow scientists to directly see a black hole.
50 years ago today cosmonaut Yuri Gagarin made history when he became the first ever human in space.
A new study of the planet Venus has identified a shape-shifting vortex that changes shape every day.
A newly discovered asteroid has been found to have been following us for 250,000 years.
The Messenger spacecraft's year-long mission in orbit around the planet Mercury has now begun.