Astronomer at SETI says humans may come into contact with the extraterrestrials in 25 years.
China's moon rover has woken up despite having a technical malfunction two weeks ago.
Imperial College London astronomers locate four clusters 10 billion light years away.
Best photos of the day: 11 February 2014
Astronomers in Australia find oldest star in the universe.
The oldest known star in the Universe was formed shortly after the Big Bang 13.7 billion years ago.
China launches fourth Antarctic research station focusing on earth and space exploration.
The new findings might help scientists virtually see the early universe in making.
Best photos of the day: 6 February 2014.
Mystery surrounds mission of X-37B drone which has been in orbit for more than 400 days.
Mike Hopkins and Rick Mastracchio share fitness tips from space.
Nasa scientists looking at carbon-rich meteorites that contain molecules used to make DNA.
Best photos of the day: 4 February 2014
David Cameron and Francois Hollande increase cooperation over space and defence despite disagreements over EU.
China's moon rover will emerge from the lunar night in a weeks' time.
The Harvard-Smithsonian Center for Astrophysics has discovered asteroid belts are responsible for shaking up the solar system.
Best photos of the day: 30 January 2014.
Scientist Rhawn Joseph files lawsuit urging Nasa to examine mystery rock more closely.
Mechanical glitch traced to 'complicated lunar surface environment'.
Exploding star not seen in decades causes amateur astronomers to sit up and take notice.
Renowned physicist Hawking puts forward new theory about black holes.
Best photos of the day: 24 January 2014
Five Nasa Earth science missions to be launched for first time in a decade.
Best photos of the day: 23 January 2014
Water is present in the form of vapour which scientists say may have originated from ice-geysers on its surface.
Some of the most spectacular space images produced by the ESO telescopes in Chile.
Best photos of the day: 22 January 2014
Mystery slime appeared following UFO sighting near Ham Well nature reserve.
Ants' ability to adapt to new environments being studied in space to develop robot navigation tools.
After a 10-year journey, Europe's Rosetta spacecraft ended its hibernation on Monday (January 20) when it returned a signal send out by the ESA (European Space Agency) mission control in Darmstadt at 1000GMT.