正在播放的是《BBC地平线:宇宙何其小》的高清完整版。该片是由著名导演Toby MacDonald 的一部精彩的纪录 类影视作品，主演有约翰·汉纳/等，本片主要讲述的是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, ..aaa