Consultations: Sleep expert Daniel Kripke reviews the research and says eight hours is not necessarily best for all.

Pictures of Antarctica. Antarctica is not an easy place to get to, but increasing numbers of people visit Antarctica every year.

What began as an informal presentation by a clinical linguist to a group of philosophers, has led to some surprising discoveries about the communicative language abilities of people with Autism Spectrum Disorder. While they may not make appropriate use of

CHINA is building a large underground nuclear submarine base at its sub-tropical Hainan Island, says Jane's Information Group, specialists in military intelligence.