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Invasion Earth (2014)
2014-10-09已完结1 季8 集单集约 50 分钟美国英语National Geographic
Have humans really seen crafts and beings from other planets? Or is there a perfectly reasonable explanation for these sightings? Invasion Earth investigates the world's most intriguing UFO sightings to answer the age old question – are we alone? With the help of scientists, aviation and military experts, all the evidence is thoroughly examined and tested.