BBC News

Going on a spacewalk - what could possibly go wrong?

Gullies seen on the surface of Mars could be formed by trapped CO2 gas causing sand to flow downhill, a new modelling study suggests.

UK astronaut Tim Peake helped two fellow crew members carry out a space walk outside the International Space Station on Monday.

Watch timelapse highlights as Tim Peake helps his crewmates carry out a space walk.

Photographers as far south as Suffolk capture the Northern Lights as the phenomenon makes a rare appearance in the skies above England.

Chilean scientists trace a record of fog behaviour in the Atacama Desert stretching back 3,500 years.

UK astronaut Tim Peake thanks the thousands of well-wishers who sent him a good luck message, as he spends his first weekend in space.

A study of storks in Britain is being carried out with a view to encouraging them to breed in the wild.

Is a war in space becoming more likely?

UK astronaut Tim Peake says his first three days in space have been better than he imagined.

UK astronaut Tim Peake is giving a news briefing from space, after becoming the first Briton to serve on the International Space Station.

What is 'Major Tim' doing in his first week in space and beyond?

More than 300 people were killed when devastating floods hit the Indian state of Tamil Nadu.

Scientists have reconstructed how an ancient reptile swam in the oceans at the time of the dinosaurs.

Scientists say they have solved the 200-year-old mystery of how a reptile that lived at the time of the dinosaurs navigated the oceans.

Could putting vibrations into the ground be a way to keep elephants from coming into conflict with humans?

Bolivia has released 100,000 turtle hatchlings into the Amazon to try and repopulate some endangered species.

The Galapagos Islands finches, which helped Charles Darwin refine his theory of evolution, are in danger of extinction, a study says.

New calculations show that our already sizeable water footprint is 18% bigger than previously recognised - at 10,700 cu km a year.

Nearly 1,500 badgers were killed this year as part of the government's cull, figures reveal.

A new global temperature forecast from the UK's Met Office says that 2016 is likely to be even warmer than the record breaking 2015.

The UK government says subsidies for small scale solar electricity panels on homes are to be cut, although by less than expected.

Europe's Cryosat mission is now monitoring the changing height of Greenland and its ice losses in unprecedented detail.

An international team says the number of landslides in April's devastating Nepal-Ghorka earthquake was far lower than people had feared.

Fracking adversaries gear up for the next round

Researchers use quantum dots to create what has been classed as the world's smallest inkjet-printed picture.

The European Court of Justice rules the European Commission breached EU law over the potentially harmful "endocrine disruptor" chemicals.

Polar bears are working harder just to stay in one place, as the Arctic sea-ice on which they hunt drifts away.

Claire Marshall explains how fracking could be done in national parks.

Increases have been agreed for the UK fishing industry in quotas for fish including North Sea cod at annual EU negotiations.

Aeroplanes may be making a high-altitude icy haze that is brightening US skies, according to a group of scientists.

What Tim Peake means for British space ambitions

Thermal footage reveals how hummingbirds lose heat as they beat their wings up to 70 times per second.

UK pupils are being offered the chance to speak to astronaut Tim Peake by video-link next year, during his six-month mission around the Earth.

UK astronaut Tim Peake boards the International Space Station, which will be his home for the next six months, after a six-hour flight through space.

UK astronaut Tim Peake boards the International Space Station, which will be his home for the next six months.

MEPs reject new EU standards for diesel car emissions, arguing that they are not tough enough.

Head of the European Astronaut Centre, Frank de Winne, reacts to witnessing the British astronaut's departure for the International Space Station.

The success of clean air legislation in western developed countries is evident in a 10-year satellite study that tracks big declines of the pollutant nitrogen dioxide.

More than three-quarters of the UK's butterflies have declined in the past 40 years, according to scientists.

An American satellite stationed a million miles from Earth has obtained a unique view of a lunar eclipse.

Scientists have been scanning the command capsule of Apollo 11 in an effort to give the public a virtual experience of what it was like inside.

The American DSCOVR satellite stationed a million miles from Earth obtains a unique view of September's lunar eclipse.

There is a new X Prize that challenges teams to map a 4km-deep, 500-sq-km area of sea floor using autonomous robots.

Sarah Rainsford reports as British astronaut Tim Peake prepares to blast off to the International Space Station.

What does the climate deal mean for me?

British astronaut Tim Peake told reporters how he would be spending Christmas on the International Space Station

UK astronaut Tim Peake says the thing he is looking forward to most on his spaceflight is the view of Earth.