7.95/10 2015-05-23 45 의사록.HDAsteroids, comets, gamma ray bursts and the sun all combine to make the Earth a dangerous place to live.
NASA's top brass and other scientists are arming themselves with the latest technology to pre-empt an apocalyptic attack. Watch and investigate bizarre, and terrifying apocalyptic scenarios and the ways that scientists are racing against the clock to develop technology to defend our planet.년: 2015사진관: History, H2국가: United States of America