Archaeologists believe they have discovered the world's oldest known calendar in an Aberdeenshire field.

The government is stepping up monitoring for a disease thought to pose a serious threat to native oak trees.

The genomes of 200 microbes, which represent the most abundant and diverse forms of life on Earth, are sequenced.

A change in the frequency of earthquakes may foretell explosive volcanic eruptions, according to a new study.

Outdoor air pollution is directly responsible for more than two-and-a-half million deaths each year, an international study suggests.