长寿，几乎是全世界各民族的追求。而对于“长生不老”的探求，更是人类古老的梦想之一。这个历代科学家们为之苦苦探寻的梦想，就是此次BBC地平线系列纪录片所要寻求的答案。找出减缓人类老化的方法，延长人类的寿命，这场探寻健康长寿之道的环球之旅即将开始。 　　研究调查表明，生活在日本远洋冲绳群岛、加州小镇Loma Linda和撒丁尼亚(意大利，地中海)的人们是世界上最长寿的。然而为何在这些地方生活的人的寿命比别处更长？他们能够长寿的秘诀到底是什么？他们的生活方式又跟我们有什么样的区别？一组科学家已投身于揭开他们长寿之谜的尝试之中，他们试图向我们证明：人类是能够有机会生活得更长寿，更健康。

本部纪录片是BBC地平线系列推出的一档探寻“土星的秘密”为命题的纪录片。土星，这颗人类用肉眼能够看到的最远行星，以其神秘美丽的土星环而被赋予诸多神话色彩。为了能够近距离地研究土星，美国国家航空航天局于1997年10月15日发射了“卡西尼-惠根斯”探测器。这将是关于航天史上最为野心勃勃的一次无人驾驶航天飞船项目，土星之谜即将被揭开。 　　土星拥有为数众多的卫星，而最著名的“土卫六”上有大气一说，更是最受天文学家瞩目的课题，也是本部纪录片的高潮所在。千百年来，人类都在试图揭开生命起源之谜。那么我们就跟随地平线摄制组的脚步，一起踏上这个跨越太阳系的伟大征程。通过探测这个未知的外星世界，来解答生命是如何开始的提问。

Corby镇出现多名天生四肢畸形缺陷的新生儿，调查发现可能与当地污染废料有关。

Horizon plunges down the biggest rabbit-hole in history in search of the smallest thing in the Universe. 　　It is a journey where things don't just become smaller but also a whole lot weirder. Scientists hope to catch a glimpse of miniature black holes, multiple dimensions and even parallel Universes. As they start to explore this wonderland, where nothing is quite what it seems, they may have to rewrite the fundamental laws of time and space.

在英国，自杀是50岁以下男性的主要死因。这部敏感的纪录片分析了关于自杀的性别悖论，提出了一些被禁止太久的问题。《地平线》摄制组将前往酒吧、俱乐部、国际男性杂志的总部，想办法挽救数千人的生命。纪录片通过私密的第一手资料，讲述那些在希望的边缘活下来的人的故事。

人为什么会笑？笑的本质是什么？笑声在社交中有什么作用？大脑能分辨真笑和假笑吗？存在全世界通行的喜剧吗？

For centuries we have dreamt of reaching the centre of the Earth. Now scientists are uncovering a bizarre and alien world that lies 4,000 miles beneath our feet, unlike anything we know on the surface. It is a planet buried within the planet we know, where storms rage within a sea of white-hot metal and a giant forest of crystals make up a metal core the size of the Moon. 　　Horizon follows scientists who are conducting experiments to recreate this core within their own laboratories, with surprising results.

Is your smart phone making you stupid? Can you make yourself cleverer? The Great British Intelligence Test measures the brainpower of the nation in one of the largest intelligence experiments of its kind. 　　Devised with leading scientists at Imperial College, London, over 250,000 people around the nation have taken part so far - revealing important new science about the nation’s changing intelligence. 　　In this Horizon special, Dr Hannah Fry and Michael Mosley put the public to the test, pitting young and old, males and females and tech lovers and readers against each other in a battle of wits. The audience can also play along online at www.bbc.co.uk/intelligencetest 　　The results reveal new science about how our intelligence changes through our life. Which mental abilities peak in our 80s? And when can adults be outsmarted by ten-year-olds? It explores how our gender can affect our intelligence and uncovers groundbreaking new science on how our lifestyle and love of technology is changing our brain. Which of our digital habits are improving our mental abilities and which are harming us? 　　With the very latest science, this film reveals the best ways to boost your brainpower.

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 extraordinary than those on our own home planet. 　　Horizon follows an international team of volcanologists in Iceland as they draw fascinating parallels between the volcanoes on Earth and those elsewhere in the solar system. Through the team's research, we discover that the largest volcano in the solar system - Olympus Mons on Mars - has been formed in a similar way to those of Iceland, how a small moon of Jupiter - Io - has the most violent eruptions anywhere, and that a moon of Saturn called Enceladus erupts icy geysers from a hidden ocean. Computer graphics combined with original Nasa material reveal the spectacular sights of these amazing volcanoes. 　　Along the way, we learn that volcanoes are not just a destructive force but have been essential to the formation of atmospheres and even life. And through these volcanoes of the solar system, scientists have discovered far more about our own planet - what it was like when Earth first formed, and even what will happen to it in the future.