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 satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles...

BBC 电子游戏自诞生之日起，媒体与学界对其进行的争论就从未停息。有人说它使人成瘾，有人说它让人变得暴力……然而这些都是真的吗？电子游戏真的有那么坏吗？《地平线》将带你回顾三十年来学界对其进行的各项研究，从科学角度阐释电子游戏对人脑产生的影响，以及它可能为我们带来的益处。

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。而我们很多人喝酒不是这样，不是每天少量饮酒而是平时几乎滴酒不沾，到周末的时候才豪饮两三次；或者是邀上好友共进晚餐喝大量的葡萄酒；或者喝些鸡尾酒或烈酒。豪饮的危害到底有多大呢？我们马上来揭晓答案…

New planets are now being discovered outside our solar system on a regular basis, and these strange new worlds are forcing scientists to rewrite the history of our own solar system. Far from a simple story of stable orbits, the creation of our solar system is a tale of hellfire, chaos and planetary pinball. 　　It's a miracle our Earth is here at all.

2013年2月28日，佛罗里达坦帕市东郊住宅区，正在熟睡中的杰夫·布什和他的卧室突然消失得无影无踪。可怕的是，他消失前毫无征兆，杰夫从此杳无音信。他被陷穴吞没了。那么，陷穴是如何形成的？对于陷穴我们能做些什么？在这个不可思议的地理侦探故事片中，伊恩·斯图尔特博士发掘了地球几百万年的历史，以寻找这些问题的答案，并追问是否会有更多陷穴在我们身边出现。

There are about 600 murders each year in the UK. So, what drives people to kill? Are some people born to kill or are they driven to it by circumstances? 　　In this programme, Michael Mosley delves into the BBC archives to chart scientists' progress as they probed the mind of the murderer to try to understand why people kill, and to find out whether by understanding murder we can p...

Michael Mosley puts himself through a battery of health tests available to people who feel perfectly well. From an expensive heart scan to a new national screening procedure to detect the earliest signs of bowel cancer, Mosley sets out to discover which if any of the tests are worth doing.

Horizon reveals how new archaeological discoveries are painting a different picture of the very first native Britons. For centuries it's been thought that these hunter-gatherers lived a brutal, hand-to-mouth existence. But extraordinary new evidence has forced scientists to rethink who these people were, where they came from and what impact they had on our early history. 　　Now, o...

The team investigate the use of modern medical technology to scan Egyptian animal mummies from museums across the world. By creating 3-D images of their content, experts are discovering the truth about the strange role animals played in ancient Egyptian belief. 　　This episode of Horizon meets the scientists working in Egypt who are exploring the ancient underground catacombs wher...

Imagine a world where dinosaurs still walk the earth. A world where the Germans won World War II and you are president of the United States. Imagine a world where the laws of physics no longer apply and where infinite copies of you are playing out every storyline of your life. 　　It sounds like a plot stolen straight from Hollywood, but far from it. This is the multiverse. 　　Until v...