Brazilian police investigate an oil spill in an offshore field operated by US firm Chevron, amid fears that it may be worse than stated.

The Indian authorities put on hold a plan to relocate wild elephants in the southern state of Karnataka, prompted by attacks on farmers.

A computer chip that mimics brain activity could help scientists advance research into artificial intelligence.

A refined version of the experiment that showed neutrinos could travel faster than light is repeated - and comes to the same conclusion.

Tonnes of rock has been disturbed at a Jurassic site in what has been described as one of Scotland's worst acts of fossil collecting.

The risk from extreme weather events is likely to increase if the world continues to warm, say scientists.

A team of US-based engineers unveil a metallic micro-lattice which they claim is lighter than aerogels and strong for its size.