In 2014, the International Space Station had to move thr times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand aounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles...
展开全部
首页和播放页都有继续观看方便追剧，用户收藏也可以每次直接观看，这次主要更新的是播放页右下角里面的去片头片尾，主要线路去广告插播，弹幕恢复，还有方便追剧》
右上角有更改主字体色彩和黑白切换。