Among eight new planets they have spied in distant solar systems, astronomers say one in particular has usurped the title of "most Earth-like alien world".

Oil giant Royal Dutch Shell agrees to a $84m (£55m) settlement with residents of the Bodo community in the Niger Delta for two major oil spills.

Most of the world's fossil fuel reserves must stay in the ground if dangerous global warming is to be avoided, modelling work suggests.

The decades-long drought in the search for new antibiotics to tackle drug-resistant infections could be over, after a breakthrough by US scientists.