19 Aug: Not many of us know that the origins of a contraption in our cars' exhaust pipes are bedded in one of the most violent chapters of Earth's history: when our young planet was under intense bombardment by huge asteroids.... more
18 Aug: China's military is swiftly catching up to the technological prowess of the United States and Russia, but across the country's far-flung mountainous borders, soldiers still ride yaks to patrol the region's punishing terrain.... more
