Stars living in outer regions of the Milky Way are younger than those inside the solar circle.
Days of continuous rain have led to landslides and severe flooding in the southern Philippines.
Scientists able to measure 27-dimensional quantum state with direct measurement.
Scientist says pregnant women's lifestyle choices like drinking and smoking effect child's IQ and sexual orientation.
European Space Agency to rouse Rosetta spacecraft after 957 days in hibernation.
Best photos of the day: 20 January 2014.
Bristol schoolboy Clarke makes 700-mile trip in 48 days.
Reservoir water levels in California at lowest for years after record low rainfall.
Unexplained appearance of doughnut-sized rock recorded by Opportunity probe.
Researchers at Georgia State University find how chimpanzees communicate.
Rosetta ready for rendezvous after three years in hibernation.
Christ the Redeemer statue overlooking Rio de Janerio in Brazil struck by lightning.
Nearly 2,000 residents were evacuated over a wildfire in the foothills of Southern California's San Gabriel Mountains.
Remains from ancient city show infectious disease and intra-personal violence doomed Harappan civilisation.
Winner of Dallas Safari Club auction to hunt endangered species in Namibia says hunt is to protect species.
Scientists examine huge primitive galaxy extending 55,000 light years.
Scientists discover 'extreme hybrid beverage' enjoyed by Nordic civilisation from 1500BC.
BBC Future creates timeline showing how all life will end.
Best photos of the day: 17 January 2014.
Dutch institute raises plants on artificial Martian and lunar soil supplied by Nasa.
Discovery of quantum vibrations inside brain suggests consciousness derives from deeper level.
Japan's space agency hires fishing net company to clean up the cosmos.
Workers in Lambayeque region discover 35 tombs from Sican culture.
More toxic pollutant to enter food chain as a result of cracking sea ice off Alaskan coast.
Best pictures on 15 January, 2014.
Skulls excavated in London show evidence of Roman head hunters.
Volcanologist says the volcano island will continue to grow as it keeps erupting.
3km-deep valley discovered beneath West Antarctica ice sheet by UK scientists.
Leading scientists say United Nations must act now on threats to future of mankind.
The smallest moon of 2014 will rise in UK at 4:12pm GMT.