SPACE

Astronomers believe white dwarf stars are best indicator of finding extraterrestrial beings.

Scientists claim ancient 'mini continent' buried underneath Indian Ocean

Astronauts fielded questions from around the world in the first live Google+Hangout web chat with Nasa.

A meteor was reportedly spotted over San Francisco, hours after one exploded over central Russia and an asteroid flew past Earth.

$2bn mission will send Clipper to explore the buried oceans of Europa

As the 2012 DA14 became the largest asteroid to pass within 17,200 miles of Earth, scientists have warned of the danger of future impacts.

Photographs of the impact of the Russian meteorite.

Just around Valentine's Day, a new photo released by the National Optical Astronomy Observatory revealed a strange nebula, far away in space resembling a red rose.

Meteor in Central Russia's Ural region has triggered UFO scare and mass panic.

An asteroid - 2012 DA14 - will come within 30,000km of Earth on the evening of 15 February. This is the closest that a Near Earth Object has ever been

Object is largest to pass so close to our planet in 15 years, say Nasa scientists.

UFOs reported over Russia and Costa Rica but videos are inconclusive.

Chandra Wickramasinghe finds tiny algae fossils inside space rock.

Nasa transmits image of Mona Lisa to the Lunar Reconnaissance Orbiter.

2013 may be year mankind finally establishes contact with intelligent life from outside Earth.

Flying saucer 'triangle' captured on film few hundred miles above Earth by Nasa cameras and uploaded on YouTube.

The star, which is just 186 light years away, has been named HD 140283 and has been studied by astronomers for over a century.

Astronomers find first structure that forms part of the Milky Way's cosmic 'skeleton'.

Greg Smith and his son saw two silent orange lights moving across the sky.

Quadrantids have maximum rate of up to 100 meteors per hour and expected to peak just before dawn on Friday.

Theories about robot shuttle range from atomic bomb to spy-satellite - and Russia and China are reportedly fretting.

Scientists suspend the launch of Naro-1 just 17 minutes before the scheduled launch time.

Nasa scientists believe 'veritable arcade' of thermal Pac-Man shapes may exist on Saturn’s moons.

A second peak of the spectacular Leonid meteor shower is forecast between dusk and dawn on 19 and 20 November.

Meteorites show there was once warm water on Mars that could have made the planet habitable.

Scientists say there is “no reason” why the planet could not sustain an environment similar to Earth.

The BBC told Professor Brian Cox not to look for alien life as it might breach health and safety guidelines.

Biological reserve in northern state of Coahuila has similar properties to red planet's Gale crater.

The Square Kilometre Array (SKA) telescope more powerful than any before, present astronomers' best hope yet of finding intelligent life on other planets.