Major coal users including Poland, Vietnam and Chile are committing to shift away from the fossil fuel, in pledges made at the COP26 climate summit, the UK government says.

Scientists have identified a new contender for "patient zero" in the plague that caused the Black Death.

A study that dug into the history of the Amazon Rainforest has found that indigenous people lived there for millennia with "causing no detectable species losses or disturbances".

China has successfully landed a spacecraft on Mars, state media announced early on Saturday.