Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes

BBC气象员彼得?吉布斯冲动地回到了他曾经生活和工作过的英国南极调查局哈雷研究站。当时，哈雷研究站在臭氧空洞的发现中起到了重要作用，而今天，它仍然在诸多领域作出了许多重要的发现，例如：人类生活如何受到

Four astronauts have to stay 1000 days in a space station around Earth in order to prove that a trip