A gene responsible for chronic pain has been identified, which could lead to drugs for treating long-lasting back pain, arthritis and headaches.

Two graduate students explain why the chatbot avatars they have created do not get along.

International Monetary Fund chief Christine Lagarde urges "bold action" on the faltering world economy, ahead of a meeting of the G7 nations.

Somalia dismisses reports that the US runs an underground detention centre in Mogadishu where the CIA helps interrogate terror suspects.

Pioneering UK research shows how poachers of deer and other animals could be tracked down and convicted through traces of their DNA.

Hundreds of millions of Microsoft users were left unable to access some online services overnight because of a major service failure.

Japan's economy contracted more severely in the second quarter than was initially estimated, latest government data shows.

Web certificate authorities are told to audit their security or risk being dumped from Firefox by the browser's developer Mozilla.