U型潜艇是特指在第一次和第二次世界大战中，德国使用的潜艇。由于德国潜艇的编号都使用德文“Untersee-boot” 也就是“潜艇”的意思（英文为U-boat）的首字母U加数字命名。1945年一艘U-745纳粹潜艇失踪，舰长冰冻的尸体在一处岛屿被发现。近70年来，这艘潜艇的下落依然成谜。 如今经过十多年的辛苦研究和水下探索，一组芬兰潜水队终于解开了这个谜，而在过程中还破解了一个迷思，并发现了一种某些人宣称从未建造过的潜艇。

The 'Mighty Eighth Air Force' tilted the balance for the Allies during World War II. This is the story of how they did it, using rare archival footage and dramatic eye-witness accounts of the airmen and the commanders themselves.

A documentary-style look into how the Disney+ original series "High School Musical: The Musical - The Series" (2019) was created.

Taste is our most indulgent sense but it is only in recent years that we have started to understand why we really love the foods we do - and it is a lot more surprising than you might think. 　　There may a way to make food taste sweeter without adding any extra sugar and it is all down to a trick that happens in your brain. Horizon meets the scientist who has grown the perfect tom...

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 how other professionals make life and death decisions under pressure, from airline pilots facing emergencies, to the Fire Service dealing with lethal blazes, to the world of Formula One pit crews. Kevin discovers how all these fiel...

On a bright, cold morning on 15th February 2013, a meteorite ripped across the skies above the Ural mountains in Russia, distintegrating into three pieces and exploding with the force of 20 Hiroshimas. It was a stark reminder that the Earth's journey through space is fraught with danger. A day later another much larger 14,3000 tonne asteroid, passed within just 17,000 miles of ...

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 record-breaking cold winters and parts of the country have experienced intense droughts and torrential floods. It is a pattern that appears to be playing out across the globe. Hurricane chasers are recording bigger storms and in Texas,...

Surgeon Gabriel Weston 为我们寻找变胖的真相。

He made perhaps the most dramatic shot in the history of NCAA basketball tournament. He's the only player to start in four consecutive Final Fours, and was instrumental in Duke winning two national championships. He had looks, smarts and games. So why has Christian Laettner been disliked so intensely by so many for so long? Maybe it was the he stomped on the chest of a downed p...

一座金字塔中的發現讓考古學家開始尋找有關努比亞王國的線索。這不是普通的考古挖掘作業，因為這座金字塔被水淹沒了。考古學家要首度潛入這座水底金字塔，讓我們更了解古老的努比亞王國。

The world's leading scientists and cinematographers relive 5 extraordinary shark feeding events. From being surrounded at night by 700 grey reek sharks, a 300-strong gathering of blacktip, dusky and bronze sharks feeding on thousands of bait fish, to the spectacular sight of more than 200 blue sharks feeding on the carcass of a seven ton whale; the Great Shark Chow Down is an e...

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 most successful prison revolts of WWII, the inmates fought back.

Adam Rutherford meets a new creature created by American scientists - the spider-goat. It is part goat, part spider, and its milk can be used to create artificial spider's web. 　　It is part of a new field of research, synthetic biology, with a radical aim: to break down nature into spare parts so that we can rebuild it however we please. 　　This technology is already being used to m...

本部纪录片是BBC地平线系列推出的一档探讨“你是善良的还是邪恶的”为命题的纪录片。这个看似简单但却令人异常不安的问题，将由本片带你一同去寻找答案。摄制组采访了多位研究人员，他们一直在研究心理变态杀手的“邪恶”。然而并非像这些科学家预期的那样，这些在牢狱高墙背后，看似可怕的杀手就是“邪恶”的。吉姆·法伦教授一直致力于人脑中精神病迹象的研究，他发现这种标签化的定义太过主观和个人化。影片将进一步采访多位科学家，他们试图用全新的理念去重写大众心中对于道德审判下的罪与罚。 　　地平线系列纪录片是英国广播公司BBC制作的一档流行并且播放已久的科学纪录片，于1964年5月2日首播，到2013年为止已有49个系列超过1100集。本系列纪录片从历史、人文、宗教、地理、设计、艺术、生物、哲学、环保、伦理等多个方面，提供世界上最伟大科学家和哲学家一个可以交流他们看法和观点的平...

创世大爆炸之前是什么样的？答案或许在黑洞中。

本部纪录片是英国BBC地平线系列中的一部。这让我们又爱又恨的神奇液体，就是一种泛滥成灾的成瘾品——酒。戒毒专家约翰·马斯登亲身说法，从专业和个性化的角度探索我们与酒精之间的关系，用科学的观点介绍人们对酒的依赖。 　　酒精是迄今为止最为广泛使用的药物，当然也是最危险的。那么，为什么这样多的人会饮酒过量？为什么酒精会如此强大的控制着我们的神经？酒精跟基因有关么？如果青少年过早饮酒的真正危害又是什么呢……面对如此之多的疑问，约翰试图与药品设计师开发出实验药物，来取代酒精。在不久的将来，这种药物是否会取代酒精呢？

Marcus Du Sautoy wants to find out how close we are to creating machines that can think like us: robots or computers that have artificial intelligence. 　　His journey takes him to a strange and bizarre world where AI is now taking shape. 　　Marcus meets two robots who are developing their own private language, and attempts to communicate to them. He discovers how a super computer bea...

She's beautiful, artistic, loved and can't stand to be alive. 32 PILLS traces the fascinating life and mental illness of my sister, New York artist and photographer Ruth Litoff, and my struggle to come to terms with her tragic suicide.

2013年，犹他州联邦法院裁定同性婚姻合法，同婚禁令违宪，这项惊人的判决掀起了当地意识形态的激烈争辩。在犹他州，有七成以上的人口是摩门教徒，而摩门教义也深入当地居民的日常生活，同性婚姻的合法化无疑掀起了一阵波澜，究竟这场思想衝突将如何发展呢？

美國竟然有八分之一都是貧窮人口？深入的角度觀察美國的貧窮問題。美國目前的貧窮比例相當驚人，未來令人堪憂。本片深入訪問了兩名博士羅恩哈斯金斯和伊莎貝爾索希爾的研究，其中概述了改變美國貧窮趨勢的三個步驟：教育、工作和婚姻。我們與教育工作者、牧師、學生和社區長官討論村裡的貧窮狀況。雖然當前數據不甚樂觀，但是機會依然存在。呼籲社區所有人為街坊鄰居站出來。希望就在你我之中！

In the town of Merced, CA, a commune of activist nuns run an illegal cannabis farm. They use it to make medicine for everything from epilepsy to cancer, fighting against the authorities, the sheriff and local cartels. This is the story of Sister Kate, the Weed-Growing Nun.

The biggest tech revolution of the 21st Century isn't digital, it's biological. A breakthrough called CRISPR has given us unprecedented control over the basic building blocks of life. It opens the door to curing diseases, reshaping the biosphere, and designing our own children. Human Nature is a provocative exploration of CRISPR's far-reaching implications, through the eyes of ...