The eye condition that may signal dementia years before memory begins to fail

Iguazu Falls in South America hits record 10 times normal water flow – video

Iguazu Falls, an Unesco world heritage site, has reached a record water flow after heavy rains across the river basin. E…

The way we keep time with the sun will be changing forever after landmark vote

Since 1972, leap seconds have been added to clock time whenever our slightly wobbly Earth falls out of sync with atomic …

‘Clean air is not a favour’: Indonesia’s neighbours fed up with acrid haze as Singapore threatens to…

Companies behind fires in Indonesia threatened with legal action as region dogged by persistent, transboundary haze Sing…