A poll for the BBC indicates a small and diminishing appetite around the world for building new nuclear reactors, although the UK bucks the trend.

Students and enthusiasts attending a recording for BBC Radio 4 have probably seen a new state of matter only recently discovered, an expert says.

Global temperatures could be less sensitive to changing atmospheric carbon dioxide (CO2) levels than previously thought, a study suggests.

There needs to be a greater focus on woodland management rather than just paying attention to the number of trees being planted, a report concludes.

The Australian government announces plans to establish the world's largest marine reserve in the Coral Sea, home to sharks, reefs and shipwrecks.

Nasa is set to launch its latest rover mission to the Red Planet - a 900kg robot to find out whether Mars is, or ever has been, suitable for life.

A libel case against the scientific journal Nature brought by an Egyptian-born researcher continues in London's High Court.