Researchers looking at light from far-flung stars suggest that the material forged near them is far more complex than previously thought.

Scientists who announced that sub-atomic particles might be able to travel faster than light are to repeat their experiment in a different way.

The one in six properties in England which are flood-prone are being put at risk by funding cuts and a lack of technical expertise, a report says.

The US launches the first of its next generation of polar-orbiting satellites dedicated to gathering weather and climate data.

The bird protection charity, the RSPB has warned that as the cold weather kicks in, birds in the UK could struggle to get enough food to survive.

Three security experts react to reports that two US satellites were interfered with by suspected hackers in 2007 and 2008.

Indigenous activists and environmentalists in Brazil occupy the site of the Belo Monte hydro-electric dam project for several hours.