导读 刚刚，搭载嫦娥六号探测器的长征五号遥八运载火箭，在中国文昌航天发射场发射升空。A Long March 5 heavy-lift carrier rocket blasted off at 5:27 pm today at the coastal Wenchang Space Launch Center in Hainan province, elevating the historic Chang'e 6 robotic mission up into skies.If everything goes according to plan, the 20-story-tall colossal rocket will fly for a short time before placing the 8.35-metric-ton Chang'e 6, the heaviest lunar probe China has ever built, on an Earth-moon transfer trajectory.The liftoff marked the opening of a complex, challenging journey of the lunar spacecraft toward the far side of the moon.If the Chang'e 6 mission succeeds, it will become the first time for rocks and dust to be recovered from the little-known lunar far side, which never faces us due to tidal forces on Earth.So far, humankind has fulfilled 10 lunar sample-return missions, but all of the samples were collected from the near side on the moon, leavin
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