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1977年,人类发射了旅行者1号和旅行者2号探测器,这两个航天器发射升空后,踏上了各自的轨道。旅行者1号沿着最快的一个飞行轨道向太阳系深空飞去,直到现在仍然在太阳系的深空里运行,并向我们传来深空的信息,它离地球大概200亿公里,可以说是人类历史上最遥远的人造物体;而旅行者2号则利用太阳系176年一次的良机,即利用行星的重力正加速去造访木星、土星、天王星、海王星四颗行星。从人类一次次太空探
In 1977, humankind launched Travelers 1 and 2, which launched their spacecraft and set foot on their respective orbits. The Voyager 1 flew deep in the solar system along the fastest flying orbit, and still it is still in the deep space of the solar system. It sends us deep space information about 20 billion kilometers away from the earth, so to speak Is the farthest man-made object in human history. Travelers 2, on the other hand, take advantage of the once-176-year solar system’s acceleration of the planet’s gravity to visit Jupiter, Saturn, Uranus and Neptune. Time and again from the human space exploration