The latest stories from the Science & Environment section of the BBC News web site.
Updated: 51 min 14 sec ago
The lives of six boys with a deadly genetic disease have been transformed by a pioneering treatment to correct errors in their DNA, say doctors.
An international team of researchers proposes adding an extra mass extinction to the current list of five.
The mysterious bright spots on the dwarf planet Ceres are back in view.
Bottles of champagne salvaged from a 170-year-old shipwreck have been analysed in the lab
The Borneo Rhino Alliance are trying to find a suitable mate for a Sumatran rhino.
Europe's Rosetta probe catches its comet quarry in the act of producing a huge jet of gas and dust.
A new species of glass frog has been found in the Talamanca mountains of Costa Rica.
A diver from the Isle of Arran in Scotland wins one of the world's most prestigious environmental awards.
Is it safe for Sherpas to go back to Everest?
A land remembered for famine is slowly turned green
Sweden sends Cuba the offspring of endangered crocodiles given by Fidel Castro to a Russian cosmonaut in the 1970s.
Britain's nuclear safety regulator says it expects lessons to be learned from problems with a French reactor that is very similar to one planned in the UK.
A sperm whale surprises scientists carrying our research in the Gulf of Mexico as it circulates their equipment.
A camera powered by the light it uses to take pictures has been invented by American scientists.
The global demand for rubber tyres is threatening protected forests in Southeast Asia, according to a study.
Although Arctic sea ice set a record this year for its lowest ever satellite-observed winter extent - that was not the case for its volume, new data reveals.
Scientists are developing smartphone-connected waders that fly-fishing enthusiasts could wear to help them find their catch, but also to collect key data about water properties.
Tonnes of dead fish are being removed from a lake in the centre of Rio de Janeiro in Brazil, which is due to host rowing and canoeing events at the 2016 Olympic Games.
Two Russian polar bears make their debut at Sao Paulo's Aquarium, as the only members of their species in the country.
Will Moore's Law last another 50 years?