免费精品AB,亚洲日韩性欧美中文字幕,鲁丝无码一区二区三区,精品久久久久久成人AV,看av免费毛片手机播放,精品国际久久久久999波多野,又黄又爽又刺激又色的视频,亚洲无线码一区二区三区在线观看

        Relay satellite for Chang'e-4 lunar probe enters desired orbit

        Source: Xinhua| 2018-06-14 11:55:14|Editor: Yurou
        Video PlayerClose

        BEIJING, June 14 (Xinhua) -- The relay satellite for the planned Chang'e-4 lunar probe, which is expected to land softly on the far side of the Moon at the end of this year, has entered its mission orbit, the China National Space Administration announced Thursday.

        The satellite, named Queqiao, or Magpie Bridge, launched on May 21, entered the Halo orbit around the second Lagrangian (L2) point of the Earth-Moon system about 65,000 km from the Moon at 11:06 a.m. Beijing Time Thursday after a journey of more than 20 days.

        "The satellite is the world's first communication satellite operating in that orbit, and will lay the foundation for the Chang'e-4, which is expected to become world's first probe soft-landing and roving on the far side of the Moon," said Zhang Hongtai, president of the China Academy of Space Technology.

        TOP STORIES
        EDITOR’S CHOICE
        MOST VIEWED
        EXPLORE XINHUANET
        010020070750000000000000011100001372532161