从最近到最远，从最炙热到最寒冷，星际旅行让您体验极限
纪录片《星际旅行指南》为6集，按照距离太阳的最近和最远，依次介绍了金星和水星、火星、木星、土星、海王星和天王星以及冥王星等行星。从最炙热到最寒冷，这些行星让您感受什么是冰火两重天。
当您踏上金星，您可能需要足够强大的遮光板。1989年，当“麦哲伦号”探测器的雷达拨开厚重的云层，人类有史以来第一次看到了金星的全貌。金星是一个火焰肆虐的世界，您可知道，它拥有数量惊人的火山，有超过1600座大火山遍布其上，其中还有很多活火山？
当您想要接近火星，那就请准备好太空衣和足够的氧气。这次旅行将是星际旅行家的梦想：跳到隔壁的行星上饱览美景，看那奶油色的天空下，巨大的铁锈色的沙漠和壮观的峡谷。这个岩石星球是人类到达宇宙其它地方的最佳落脚点，也是人类已知的存在外星生命形式的最可能的地方。您可知道，高耸的火山是喜马拉...
Doomsday Preppers is an American documentary television series that airs on the National Geographic Channel. The program follows various survivalists, or "preppers," preparing for the end of civilization. The series interviews people who are preparing to survive the various circumstances through which life as we know it might come to an end, including economic collapse, societa...
Are you ready for the end of the world For the secretive American subculture, known as the 'Preppers', making ready for disaster has become a daily preoccupation.
Doomsdayers 2012 meets four families who are convinced that society is on the verge of collapse and are prepared to sacrifice normal life to survive.
For these survivalists, the end of days can come in many forms; a...
每年有将近两亿顿的货物跨过巴拿马运河。运河从中美洲横切而过，连接大西洋和太平洋。无需花费4个星期绕过南美洲，船只仅需10小时就能通过运河，不仅如此，这项工程学还有个令人难以置信的功能，可以让85英尺的船只升起，越过一座山脊。这条人工水道是个巨大的神奇搬运家，依赖一套精密的船闸系统和机械，绵延50里长，将船只提高近8层楼横跨整个国家。但运河不只是一跳捷径，也是一门生意。过往船只一天要支付高达25万美元的过河费。但这条老化的运河正面临百年来最大的挑战，如何适应现代的需求？
The world’s oldest profession is now a thriving black market economy, with an underground workforce that’s just an Internet connection and a phone call away. National Geographic’s Mariana van Zeller journeys to the heart of the American escort industry and uncovers the gritty reality behind the supply and demand of high-end sex work. Television has glamorised it and the interne...
