12亿英里远之外，一艘小型航天器正在离开我们的太阳系，缓缓地进入广袤的宇宙空间，而做到这些的是有史以来人类的第一个人造物体旅行者号。它们是人类文明的载体，是百万年后我们文明的痕迹。

1977年秋天，相隔16天发射的旅行者2号太空探测器克服了一切困难，在无数次未击中中幸存下来，近40年后，它继续向难以想象的距离传递革命性信息。

Is it humankind's greatest achievement? 12 billion miles away a tiny spaceship is leaving our Solar System and entering the void of deep space. It is the first human-made object ever to do so. Slowly dying within its heart is a plutonium generator that will beat for perhaps another decade before the lights on Voyager f…

Is it humankind's greatest achievement? 12 billion miles away a tiny spaceship is leaving our Solar System and entering the void of deep space. It is the first human-made object ever to do so. Slowly dying within its heart is a plutonium generator that will beat for perhaps another decade before the lights on Voyager f…