视频简介
The dream of sending humans to Mars is closer than ever before. In fact, many scientists think that the first person to set foot on the Red Planet is alive today. But where should the first explorers visit when they get there? Horizon has gathered the world's leading experts on Mars and asked them: where would they go, if they got the chance - and what would they need to surviv...。Forty-seven percent of the United States remain uninhabited, mostly dense woodland and rough terrain. Stories since the 1800s have circulated, warning your common man of humans that do call the hard-to-reach, uninhabitable lands home. Wild in nature and more beast than man, these populations of humans are said to exist in the darkest parks of the United States. One night, three...。