Dr Kevin Fong tackles moral questions surrounding death that face not just the medical profession, but each and every one of us. Throughout the programme, he meets medical professionals who are at the heart of the dilemm…

时间旅行并不是自然规律所禁止的，但要建立一个时间机器，我们需要比现在更了解这些规律以及如何颠覆它们。每天，科学确实会学到更多。在这部电影中，“地平线”遇到了研究发现前沿的科学家，他们可能会发现如何建造虫洞、操纵纠缠光子或…

In the US, there are now six states that offer the terminally ill the option of ending their lives with a prescribed cocktail of drugs.  Louis heads to California, one of the latest states to adopt this law, where reside…

Horizon looks at dark energy - the mysterious force that is unexpectedly causing the universe's expansion to speed up. The effects of dark energy were discovered in 1998 but physicists still don't know what it is. Worse,…

Simon Reeves makes another "round the world" trip following the tropic of Capricorn which is parallel (but shorter) to the equator in the Southern hemisphere. Again each episode is a rapid visit to one or more …

日心说、万有引力、进化论、大爆炸理论，在现代科学的高度发达的今天，上帝还有没有存在的空间？宗教还有没有存在的价值？地平线节目组试图通过回顾四十多年来关于宗教和科学各种争端的纪录片来阐述这个终极难题。（文：merlin）

Poet Simon Armitage traces the evolution of the Arthurian legend through the literature of the medieval age and reveals that King Arthur is not the great national hero he is usually considered to be. He's a fickle and tr…