微博截图
今天,著名科学家霍金在美国纽约宣布了一项外星探索计划。他们将制造可达到光速1/5的“纳米飞行器”,在未来20年内抵达最接近地球的半人马座阿尔法星宜居带,寻找类地行星……他说,人类迟早要考虑在其他星球生活,飞到另一个星球去生活。你怎么看?
霍金微博原文:
greetings to everybody in china from nyc. at the one world observatory in new york city, yuri milner and i launched a mission to the stars. mark zuckerberg lent his support by joining the board of our new initiative, breakthrough starshot.
within the next generation, breakthrough starshot aims to develop a ‘nanocraft’ – a gram-scale robotic space probe – and use a light beam to push it to 20 percent of the speed of light. if we are successful, a flyby mission could reach alpha centauri about 20 years after launch, and send back images of any planets discovered in the system.
albert einstein once imagined riding on a light beam, and his thought experiment led him to the theory of special relativity. a little over a century later, we have the chance to attain a significant fraction of that speed: 100 million miles an hour. only by going that fast can we reach the stars on the time-scale of a human life.
it is exciting to be involved in such an ambitious project, pushing the boundaries of ingenuity and engineering.
我在纽约向中国的各位问好!在纽约城的一号楼观景台,我和尤里·米尔纳启动了“突破摄星”计划 (breakthrough starshot),马克·扎克伯格也加入了该计划的董事会,为“突破摄星”助一臂之力。
在一代人的时间内,“突破摄星”旨在研发出一台“纳米飞行器” —— 一台质量为克级的自动化太空探测器—— 并且通过光束把它推动到五分之一的光速。如果我们成功的话,这个飞掠任务将会在发射后二十年左右到达半人马座阿尔发星,并发送回来在那个星系中发现的行星的图片。
爱因斯坦曾经幻想在宇宙中乘着一道光线飞驰,这个思想实验为他的狭义相对论奠定了基础。一个多世纪后,我们有机会可以达到光速的一小部分:一亿英里每小时。只有通过这么快的速度,我们才有希望在人类的时间尺度内到达那些恒星。
这个项目耗资巨大,雄心勃勃地希望探索人类创新和工程学的极限。能参与这样的项目,非常令人兴奋。
- s.h.
特别声明:本文转载仅仅是出于传播信息的需要,并不意味着代表本网站观点或证实其内容的真实性;如其他媒体、网站或个人从本网站转载使用,须保留本网站注明的“来源”,并自负米乐app官网下载的版权等法律责任;作者如果不希望被转载或者联系转载稿费等事宜,请与我们接洽。