A solar powered plane is encountering its first weather front during its attempt to cross the Pacific Ocean.
China - the world's largest emitter of greenhouse gases - has announced details of its climate action plan.
A bird can communicate by rearranging sounds into calls that convey meaning in the same way that humans use language, say scientists.
Midnight will come later tonight as for the first time in three years an extra second is added to the official time set by atomic clocks.
The UK must take urgent action to prepare for the impacts of climate change in the UK, according to a report submitted to the government.
A solar-powered plane passes the "point of no return" after leaving Japan for a second attempt at a record-breaking flight across the Pacific Ocean.
An application to start fracking at a site in Lancashire is rejected by county councillors.
The US Supreme Court blocks a key government attempt to limit pollution from the country's power plants after industry challenges the changes.
An unmanned SpaceX Falcon-9 rocket breaks apart in flames after lift-off from Cape Canaveral, Florida - its first failure in 19 launches.
Seagrasses - the underwater plants that act as nursery grounds for young fish - need more protection, according to Welsh scientists.
The president of University College London says that Prof Sir Tim Hunt will not be reinstated after his controversial comments about women.
A strain of genetically modified wheat developed in the UK has failed to repel pests as intended in field trials.
Silicon chips that mimic the function of living human organs win the Design of the Year award from the Design Museum in London.
A scientific journal calls for the film Interstellar to be shown in school science lessons.
Scientists in India and Pakistan say higher temperatures were just one factor in the recent heatwaves and other causes such as air pressure, humidity and sea breezes played a role.
The famous lemurs of Madagascar face such severe threats to their survival that none of them may be left in the wild within 25 years.
One of nature's most bizarre animals - Hallucigenia - is finally revealed in its entirety after specimens in Canada reveal its missing face.
Midnight will come later tonight, as for the first time in three years, an extra second is added to the official time set by atomic clocks.
A solar-powered plane has passed the "point of no return" in its second bid at making a record-breaking flight across the Pacific Ocean.
One of the world's largest and smelliest flowers has blossomed for the first time in Scotland.
The distinguished broadcaster and naturalist, Sir David Attenborough, has been on a visit to the White House at the personal invitation of President Obama.
How zoo giraffes are helping veterinary scientists to find out if very long, spindly legs are a help or a hindrance for walking.
Oxford University Museum of Natural History has been shortlisted for the Art Fund Museum of the Year.
Racehorses are continuing to get quicker, a study of winning times spanning 165 years of racing indicates.
Director Christopher Nolan talks about the importance of accurate science in making his film Interstellar, after a leading scientific journal calls for it to be shown in school lessons.
Italian astronaut Samantha Cristoforetti on life in space
Does the future of wildlife lie in captivity?
Charting China's climate change ambitions
On a family hunt for the now rarely-seen stag beetle
The good-looking gorilla that captivated women in Japan and beyond