地平线系列：火星旅行者指南是由KARAKaraBeaton等主演RebeccaHarrisonEuanMcDonaldSmith导演的未知片，2017年在探索纪实漫游世界等电台播出。<p>　　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?<br/>　　Horizon has gathered the world's leading experts …