BBC News

Onlookers are treated to a spectacular display as the Southern Lights hit Australia and New Zealand.

Drought, excessive construction and a water cartel are all adding to Bangalore's woes.

Social media users target Cincinnati Zoo on the anniversary of Harambe's killing.

The US president says he will announce this week if he will pull out of the Paris agreement.

Researchers say their study identifies "cognitive factors" that might lie behind brutal acts.

The Royal Geographical Society is releasing films of its scientific explorations from the early 20th Century.

Scientists say the Solar System's biggest planet is showing itself to be far more complex than anyone thought.

The first ever launch from New Zealand is a step towards making it cheaper to get cargo into space.

Antibiotics and vitamins helped the injured loggerhead sea turtle back to health in Marathon, in the Florida Keys.

The crashed European spacecraft Schiaparelli was ill-prepared for its attempt at landing on the surface of Mars, a report suggests.

Flamingos expend less energy standing on one leg than in a two-legged stance, scientists confirm.

As a warming climate threatens traditional food supplies in the Arctic, one rural Alaskan village is flying in hundreds of reindeer by cargo plane. James Cook went to find out why.

A man abandoned as a baby 61 years ago traced his family using a DNA detective. But what do they do?

Viable mouse sperm stored in space gives hope for sperm banks on the Moon, a Japanese team says.

Nepalese mountain guides have a physiology that uses oxygen more efficiently than lowlanders.

A waste disposal firm claims that plastic drinking straws are "the ultimate in human wastefulness".

One is up a river estuary, the other is awaiting removal from a beach.

Experts warn against getting too close to wild animals after a sea lion pulls a young girl under water.

The nest in the Cairngorms in which three osprey chicks had hatched now appears to have been abandoned.

Make science and research a priority in Brexit talks, says Russell Group.

Contraception wasn’t just socially groundbreaking - it also changed the professional landscape.

The world's highest mountain poses new hazards after the collapse of a key rocky outcrop.

Look but don't touch as it tumbles down the Pulama Pali slope in Hawaii.

A key component of the UK's first high-energy proton beam machine is delivered to its new home in Newport.

Measures are announced after water enters a frozen facility guarding the world's key crop seeds.

A Humboldt penguin chick has hatched at a sea life sanctuary for the first time in more than a decade.

Locals say sheep on Agios Efstratios are starving as so much plant life is being devoured by swarms.

The packaging for Pringles and Lucozade Sport are among the most difficult to recycle, a trade body says.

Shutting down wind farms when birds pass over is one of the methods being tested to save migrating species.

The vast reserves of methane hydrates under the bottom of the sea could be key to future energy needs.

Zafer Kizilkaya's work saved a Turkish community. His fish conservation model's now widely adopted.

Whether or not the US is involved in global talks, the US will also feel the impacts of climate change.

Nasa is seeking the best ideas for experiments to fly on a mission that will land on Jupiter's moon Europa.

Students in the Netherlands have come up with this novel design.

Almost 2,000 plants new to science have been identified in the past year, but many are at risk.

Much of the packaging we put in the recycling bin ends up in landfills, but a design competition backed by Prince Charles is aiming to tackle the issue.

"One boy said: I'm going to kiss it in the mouth," the snake's owner said.

The countries most vulnerable to climate change say the rapid implementation of the accord is key to their survival.

Rare left coiled snail, Jeremy, has been rejected by potential mates and is now stuck in a love triangle.

Scientists suggest smaller plants are better at absorbing air pollution around tall buildings.

Scientists have decoded the genome of a snail involved in the spread of a deadly parasitic disease.

A leaked letter throws doubt on the legal basis for sharing 1.6 million patient records with DeepMind.

The uninhabited Pacific island is littered with 37.7 million pieces of plastic debris, scientists say.

Meet the scientist behind one of the biggest science projects in the Middle East.

How an entrepreneur is bringing water to the deserts of Pakistan by using goats as currency.

A fishing ban extension is said to be the best hope for the world's most endangered marine species.

The London-based satellite operator puts up a fourth spacecraft in its global broadband network.

Swansea University researchers are using the models to understand how best to use tidal power.

The iguana chase won Planet Earth II the Bafta for Must-See Moment.

How different Earth's history might have been if the space rock had struck a different location.