简介：年仅20岁的凡妮莎·吉伦在美军陆军基地惨遭杀害。她的家人没有选择沉默，而是伸张正义，寻求改变

简介：In April 2013, chaos erupted in Boston near the finish line of one of the world's oldest and most prestigious marathons. It was the worst terroris

简介：由詹姆斯·卡梅隆监制的纪录片《阿卡辛加：无惧之躯》(Akashinga: The Brave Ones) 聚焦一群誓死与盗猎者搏命的硬核女性，她们自愿接受魔鬼训练，荷枪实弹守护濒危动物，而其背后的精神支柱源于自然界最强大的力量：女性的守护本能。在组织者Damien Mander看来，这些曾经遭受性侵

简介：A revealing and personal profile of Grammy Award–winning composer and producer David Foster, with interviews from the artists who know the music legen

简介：Suicide is the biggest killer of men under 50 in the UK - causing more deaths in this group than car accidents, and even more than cancer. This means

简介：Volcanoes have long helped shape the Earth. But what is less well known is that there are volcanoes on other planets and moons that are even more extr

简介：This episode looks at the issues that will change the way we live our lives in the future. Rather than relying on the minds of science fiction writers

简介：去过伦敦自然历史博物馆的人肯定都知道里面的巨型恐龙的骨架。一个多世纪以来，它吸引了数百万的参观者来到博物馆，但是任何明星都会迎来他最终谢幕的一天，这副恐龙骨架也不例外。2015年初，自然历史博物馆的馆长对外宣布，这副占据了整个大厅的梁龙骨架就要退休了，取代它的将是一副蓝鲸的骨架...  两

简介：自从人类文明伊始酒精就被用作一种药物，但是关于酒精的科学似乎含糊不清而且充满了矛盾。我们对市售药品及其疗效相对比较熟悉，但是对其作用原理及对人体的影响却所知甚少。我们将调查有关酒精的证据，很多人认为每天适度饮酒对我们的身体健康不会产生太大影响，许多人认为每天少量饮酒其实对人体健康是有益的。而我们很多

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