Engineers have invented a battery made of three liquefied metals, which they say is efficient and cheap enough to store power on the electric grid.

Scientists who claimed to have found evidence for a cosmic super-expansion just after the Big Bang underestimated a key confounding factor in their research, according to a new analysis.

The Rockefeller family, which made its fortune from oil, is to sell its investments in fossil fuels and put money into clean energy.

Researchers meet in London to discuss sea-ice trends, as the Arctic reaches its summer low extent and the Antarctic pushes on to another record high.