Biographer says project has been plagued by difficulties and walkouts by engineers.
Chinese orbiter becomes the first spacecraft in almost 40 years to make return journey to the Moon.
Neurological mapping techniques could allow scientists to understand how drugs cause synaesthesia and hallucinations.
Police arrive to find 15-year-old dead at scene in New South Wales.
Lake Toba study shows "tremendous" amounts of lava emitted during super-eruptions.
Ozone hole reached 24.1 million square kilometres, slightly bigger than last year's peak.
Study looks at how normal certain sexual fantasies actually are.
Moscow to submit UN application claiming 1.2 million square kilometres of Arctic Ocean.
A zoo in Chile allows visitors to tickle a lion's belly – from inside a cage mounted on a truck.
Ariel images of 'Big Circles' show 11 structures across the Middle East.
Police said they took photos of unmanned aircrafts flying over atomic sites across the country.
Using giant clusters as lens to see beyond Hubble telescope, astronomers have detected remnants of stars ripped out in galactic violence billions of years ago.
Two communities are showing that sustainable management of a precious resource does not have to be enforced from outside.
US songbird numbers recovering after finding unusual new habitat.
A poor air quality in Beijing was recorded on a day when Nasa satellite data revealed a haze over eastern parts of the country.
Archaeologists believe 2,000-year-old Mexican tunnel will lead to royal Teotihuacan tombs.
Mystery of Earhart's last flight closer to being solved following fragment discovery.
A multi-scale material developed by scientists can vastly improve the efficiency of a solar thermal plant.
New species of frog discovered in New York City and surrounding area.
A new species of ankylosaur from Mongolia has been named by scientists.
The World Press Photo Exhibition returns to London from 7 to 26 November 2014.
Prehistoric art may have been created in response to hearing ghostly echoes in caves.
Allotments providing "essential habitat" for declining bee populations across UK.
Hubble Telescope captures shadow of Ganymede over Jupiter's Great Red Spot.
Divers have recovered important artefacts from an ancient shipwreck off the Aeolian Island of Panarea near Italy.
A secondary gamma ray signal from the core of the Milky Way seems to fit the theory of dark matter collisions in the region.
The UN expert body on climate change has come up with a synthesis report that warns of severe impacts from global inaction.
Thanks to a conservation programme that bred the species in captivity and released it into the wild, a sub species of the Galapagos giant tortoises has made a recovery from near extinction.
An unmanned, 14-storey rocket built by Orbital Sciences burst into flames soon after lift-off, according to Nasa.
Around 13,000 Israelis, Arabs and tourists partied for 12 hours last week in the historic palace complex of Masada.