The round-the-world, fuel-free aeroplane, Solar Impulse, head to Nanjing to prepare for an epic Pacific crossing.
Europe's Rosetta probe catches its comet quarry in the act of producing a huge jet of gas and dust.
A diver from the Isle of Arran in Scotland wins one of the world's most prestigious environmental awards.
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.
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.
The global demand for rubber tyres is threatening protected forests in Southeast Asia, according to a study.
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.
A camera powered by the light it uses to take pictures has been invented by American scientists.
Researchers reveal the secret of an octopus's unique movement, revealing how the animals co-ordinate their eight, flexible arms.
Observations from space assist the search for new locations to site geothermal power stations.
Any attempts to engineer the climate are likely to result in "different" climate change, rather than its elimination, new results suggest.
Scientists are using YouTube videos to study a spectacular cave just outside Riyadh, the capital of Saudi Arabia.
Sweden sends Cuba the offspring of endangered crocodiles given by Fidel Castro to a Russian cosmonaut in the 1970s.
Nobel-winning structural biologist Venki Ramakrishnan is elected to become the next president of the Royal Society.
A new iPad app is asking users to "tag" tigers in images gathered from the internet, to help researchers with counting and tracking the animals.
Europe will not be mounting a sample-return mission to an asteroid, having rejected the MarcoPolo concept at the third time of asking.
The UK government’s claim that the country leads the world in cuts of carbon emissions is challenged by researchers at Leeds University.
The UK government is to establish the largest marine reserve in the world around the Pitcairn Islands in the Pacific.
Mercury pollution has risen nearly 50-fold in the feathers of a gull that feeds and breeds in the Arctic, say scientists.
Negotiations are opening on a £1bn tidal lagoon scheme in Swansea as the chancellor gives his Budget speech in the House of Commons.
The Borneo Rhino Alliance are trying to find a suitable mate for a Sumatran rhino.
A new species of glass frog has been found in the Talamanca mountains of Costa Rica.
A sperm whale surprises scientists carrying our research in the Gulf of Mexico as it circulates their equipment.
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.
Graham Satchell explains why fracking is such a divisive subject.
BBC News looks at the idea of "stranded assets", part of the debate on climate change and global energy policy.
The SpaceX supply ship is on its way to the ISS with a supply of groceries and a specially designed espresso machine.
Is it safe for Sherpas to go back to Everest?
A land remembered for famine is slowly turned green