Nasa has sent a DNA sequencer to the International Space Station in an effort to help astronauts monitor their own health.

The United Nations cultural agency Unesco names Iraq's southern marshes - once decimated by Saddam Hussein - a World Heritage Site.

Improving co-operation between nations' farming and forestry sectors will help reduce deforestation and improve food security, a UN report suggests.

An international group of scientists have analysed the DNA of 6,000 year old barley, showing that it is remarkably similar to modern day varieties.

The quest for storage devices that pack ever more information into a small space has reached a new limit, with memory that writes information atom-by-atom.