Scientists make crucial new discoveries about one of the world's rarest birds, the blackthroated blue robin, with a breeding pair spotted in China.

An experiment located at the bottom of a US gold mine could offer the best chance yet of detecting dark matter, scientists believe.

The world needs a Plan B on climate change because politicians are failing to reduce carbon emissions, according to a UN report.

A volcanic island in the Pacific Ocean has merged with its neighbour to form one landmass, the US space agency says.

The Ebola outbreak could take up to four months to contain as the number of people killed by the virus in Guinea passes 100, the UN says.