BBC

The 93 petaflop Sunway TaihuLight in China has topped a newly published list of supercomputers.

Solar Impulse 2 sets off from New York to cross the Atlantic, one of the toughest stages of its attempt to fly around the globe using solar energy.

British astronaut Tim Peake has said he is elated to be back on earth after six months onboard the international space station.

President Barack Obama draws attention to the dangers of climate change while on a visit to Yosemite National Park in California.

Footage shows the descent of UK astronaut Tim Peake and two other crew members as they touched down in Kazakhstan.

UK astronaut Tim Peake is safely back on Earth after a historic mission to the International Space Station.

British astronaut Tim Peake has boarded the spacecraft that will return him to Earth following an historic six-month mission to the space station.

Ocean experts call for international action to generate the kinds of maps of global seabeds that space missions have already returned for the Moon and Mars.

A horde of giant spider crabs has amassed in waters near Melbourne. Australian aquatic scientist Sheree Marris filmed this incredible footage.

Arctic sea-ice may have hit a record low in May but that does not mean September will set a new minimum mark, say polar experts at Reading University, UK.

A crater on Mars is named Langtang, in tribute to one of the worst-hit villages during the 2015 Nepal earthquake.

Newly sequenced genomes of soil bacteria have led to questions about how differing land management affects the organisms' behaviour, on agriculture and emissions.

British astronaut Tim Peake is due back to earth six months after blasting off into space.

A massive population of giant spider crabs amasses in waters off the Australian city of Melbourne.

Biggest ever deep Atlantic exploration mission launched by UK scientists.

British astronaut Tim Peake is preparing to return to Earth after an historic six-month stay aboard the International Space Station.

Government-funded ice breaker criticised for guiding luxury cruise in the Arctic as worries grow over the environmental impact of tourists.

The Dead Sea is one of the great ecological treasures of the world but it is shrinking at an alarming rate, as Kevin Connolly reports.

Official figures released today by the Forestry Commission show that the government is falling far short of its own tree-planting targets

How UK astronaut Tim Peake will get back from the International Space Station (ISS).