简介:In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellit
简介:Dr Kevin Fong finds out how doctors can avoid making mistakes in the high-pressure, high-stakes world of the operating theatre. He sets out to learn
简介:The secret Nazi death camp at Sobibor was created solely for the mass extermination of Jews. But on the 14th October 1943, in one of the biggest and m
简介:Something weird seems to be happening to our weather - it appears to be getting more extreme. In the past few years we have shivered through two rec