Electricity is restored to part of Japan's stricken nuclear plant, but workers are evacuated after smoke is seen rising from one of the quake-damaged reactors.

A new way of delivering drugs to the brain has been developed by scientists at the University of Oxford.

The world's rarest albatross is confirmed as a separate species by scientists in Canada.

The nuclear crisis unfolding in Japan will not affect EDF's plans to build new reactors in the UK, the firm's boss tells the BBC.

The largest collection of Roman coins found in Britain in one pot will stay in its home county.

An experiment is held to identify how Iron Age people may have communicated between their hilltop homes 2,500 years ago.

A website has been launched, aimed at providing crowd-sourced information about radiation levels in Japan.

The situation at Japan's quake-damaged nuclear plant remains very serious but the crisis will be "effectively overcome", says the head of the UN atomic agency.