BBC

He has called it all of these things: "mythical", "a hoax", not a hoax, and "a very serious subject".

Experts use 3D printing and speech technology to replicate the voice of Egyptian priest Nesyamun.

Experts say the man's brain, found in the Roman town of Herculaneum, was affected by extreme heat.

Taxes may be needed to curb eating meat and dairy in the effort to combat climate change.

The first survey in decades will look at the 40 or more species thought to be living in Britain.

The West African country has partnered with UNICEF to transform landfill waste into bricks for schools.

EDF Energy wants to build new reactors next to the existing Sizewell B near Minsmere nature reserve.

At the World Economic Forum, he asked: "Do we want to go down in history as the people who did nothing?"

Acute stress damages stem cells that control hair and skin colour, a study suggests.

The heir to the throne calls for a "paradigm shift" in the way the world deals with climate change.

The 2.2 billion-year-old asteroid impact may explain the end of an ice age, scientists say.

A UK-led satellite aims to get an absolute measurement of the light reflected off Earth's surface.

The Swedish climate activist and the US president gave very different speeches at Davos.

The US president attacks activists at the World Economic Forum, with Greta Thunberg in the audience.

Teenage climate activist Greta Thunberg has addressed world leaders at the World Economic Forum in Davos, Switzerland.

The US president called for the rejection of "the perennial prophets of doom" during his speech.

Tie-up of flexible solar film and energy storage aims to take homes and business off-grid.

Roads are dominating new housing developments, a report says, despite more people wanting to drive less.

Research is at an early stage but scientists said it had huge potential for destroying cancers.

High pressure at Heathrow Airport reaches 1,049.6 millibars - a record for the UK's capital.