Life in the universe may be most likely to exist on desert planets rather than Earth-like worlds.
Earth is not the only planet to experience hurricanes - storms on Jupiter and Saturn put Irene to shame.
A planet formed from a dead star in orbit around a pulsar is believed to have crystallized in to diamond.
Scientists are demanding new rules to prevent experiments to give lab animals human-like attributes.
The Turanor PlanetSolar is circumnavigating the world's oceans to prove that renewable energy can work.
European scientists have declared a nearby planet with Earth-like conditions to be habitable.
A giant radio telescope has started listening for signs of ET on 86 earth-like extrasolar planets.
Planets that exist on their own away from stars or orbits could potentially host alien life.
In a spectacular event Venus, Mercury, Mars and Jupiter will all line up in the sky this Friday.
Have we so irrevocably altered our planet that we've actually entered in to a new geological age ?
NASA are planning to pick from three possible destinations for a $425 million mission in 2016.
A new UN treaty is being drafted that would see planet Earth being granted the same rights as humans.
A new study of the planet Venus has identified a shape-shifting vortex that changes shape every day.
The Messenger spacecraft's year-long mission in orbit around the planet Mercury has now begun.
One theory suggests that life on Earth developed from organisms that arrived here from the planet Mars.
NASA's Messenger spacecraft has successfully become the first ever to orbit the planet Mercury.
Kepler has found something unlike anything seen before - two planets sharing the same orbit.
Recent discoveries of planets outside our solar system make finding alien life seem more and more likely.
A growing population relying on fewer natural resources could make Earth unrecognizable in 40 years.
Data from NASA's Kepler telescope suggests there are 50 billion planets in the Milky Way.