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.

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.

This is the story of how our solar system will be transformed by the aging sun before coming to a spectacular end in about eight billion years. Astronomers can peer into the far future to predict how it will happen by analysing distant galaxies, stars and even planets in their final moments. 　　In this film, Horizon brings these predictions to life in a peaceful midwestern town that has a giant scale model of the solar system spread out all over the city. As it ages, the sun will bloat into a red giant star, swallowing planets... as well as half the town. The fate of the Earth itself hangs in the balance. How will the solar system end?

太阳系的命运都写在星星上。天文学家正在天空中寻找壮观的宇宙事件，因为在遥远的未来，这类事件很可能会发生在我们身边。因此，他们用这种办法来预测太阳及其行星将如何终结。星系碰撞、行星熔化、生命消失，这就是世界末日。《地平线》将与这些现代先知一起向我们展现世界末日到来之时人类可能面对的人间地狱。

水是生命之源，科学家用望远镜和探测器寻找地球之外的水源，从地球环境模拟生态演变，发现太阳系的多颗行星和卫星都有汪洋迹象，并可能有生命存活至今。我们苦苦寻找的外星生命，也许就近在身边，这结论挺叫人兴奋的。

水是生命之源，科学家用望远镜和探测器寻找地球之外的水源，从地球环境模拟生态演变，发现太阳系的多颗行星和卫星都有汪洋迹象，并可能有生命存活至今。我们苦苦寻找的外星生命，也许就近在身边，这结论挺叫人兴奋的。

Horizon is BBC Two's flagship 50-minute science documentary series. In September 2004 it celebrated its 40th anniversary and it continues to enjoy outstanding critical acclaim. Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia. In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand. In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

Horizon is BBC Two's flagship 50-minute science documentary series. In September 2004 it celebrated its 40th anniversary and it continues to enjoy outstanding critical acclaim. Recognised as the world leader in its field, it regularly wins a sweep of international science, medical and environmental film accolades, and has recently won the Royal Television Society Award and the Prix Italia. In 2002, the British Academy of Film & Television Arts presented Horizon with the BAFTA Television Award for Best Factual Series or Strand. In 2003 it won the prestigious Images et Science award for best medical documentary and the Carl von Linne Award at the Living Europe film festival in Sweden. That year, a Horizon co-production with WGBH Boston won the Emmy for best documentary.

地球的形成离不开水，水对生命的延续至关重要。我们曾经认为海洋是地球独一无二的产物，但天文学家在太阳系发现了海洋的踪迹。也就是说，宇宙的某些地方也许存在我们从未想过的生命。《地平线》将开启一段史诗般的旅程，从土卫二的冰层垃圾到火星的史前海洋，以及土星最大的卫星土卫六泰坦的沼气湖：美国国家航空航天局计划将一艘潜水艇送上土卫六泰坦，并且潜入黑暗的湖底。我们是否即将发现生命并非地球独有，而是在太阳系无处不在呢？

究竟是哪里疼呢？从出生那一刻到最后离开这个世界，我们总在经历着疼痛。我们毕生都在努力避免它，但是疼痛却是我们生存的关键因素。该片借助遗传学、最新的扫描技术、虚拟现实技术和催眠术，为我们解开一些疼痛背后的奥秘。让我们一起了解为什么有些人觉得比其他人更痛，而有些人却根本不知道疼痛为何物，本片带我们共同发现为什么情绪和想法可以影响我们对疼痛的感知。