中新网7月20日电 46年前的今天，美国宇航员阿姆斯特朗在月球表面首次留下人类足迹,实现了人类登月梦想。46年后的今年，遥远的太空中，“新视野”号孤独飞行52亿公里赴冥王星之约；货运飞船接力发射，国...
July 20, 46 years ago today, American astronaut Neil Armstrong on the moon's surface for the first time leave the human footprint, to achieve the dream of mankind to the moon. 46 years later this year, far in space, the new vision, the number of lonely flight 5200000000 kilometers to Pluto, the relay of the cargo ship, the country...
