国家/地区：英国
时长：120分钟
语言/字幕：英语
<p>Professor Stephen Hawking thinks the human species will have to populate a new planet within 100 years if it is to survive. With climate change, pollution, deforestation, pandemics and population growth, our own…
<p>Professor Stephen Hawking thinks the human species will have to populate a new planet within 100 …
