The 2011 earthquake that devastated northern Japan slid along a thick layer of nearly frictionless clay called 'smectite', say scientists who made the first-ever friction measurements of an earthquake.
Are there lessons from the recently negotiated agreement to scale down Iran's nuclear program that can be used in North Korea? Perhaps, but the two differ substantially. Some questions – and answers – on the North Korean and Iranian programs:
Scientists have discovered a bone unearthed in northern Spain that is apparently 400,000 years old. Analysis of its DNA suggests that it belongs to an extinct human lineage whose members had previously been found only in Asia.
As the Pentagon forges ahead with its strategic shift toward Asia, the Philippines is likely to be important for US national security efforts in the region – particularly in light of China’s recent declaration of an 'air defense zone.'
China's declaration of a maritime air defense zone escalates its territorial dispute with Japan and recently, Japan's relations with South Korea have faltered over the use of Korean sex slaves in WWII, leaving the US in a complicated position.
The Turkestan Islamic Party Saturday released a Uighur-language speech from its leader Abdullah Mansour. He said the Oct. 28 attack, and other jihadi operations by holy warriors, was only the beginning of attacks on Chinese authorities.