Science

Stephen Hawking has managed to air his concerns about Donald Trump, Brexit and the backlash against experts to an audience of hundreds in Hong Kong without travelling 6,000 miles to the country.

The close relationship between mice and humans seems to have begun with the earliest settled people around 15,000 years ago – even before the advent of farming that made our stored crops a draw for the rodents.

Its true purpose is shrouded in secrecy.

People are being urged to join UK landmarks and famous sites around the world as they switch off their lights for an hour on Saturday night to back action on climate change.

More than 100 million years ago, on a muddy stretch of land that is now Australia, nearly two-dozen species of dinosaur once roamed.

A huge effort has been launched to comb hundreds of thousands of photos of space to search for the planet's existence