NASA's Voyager 1 and 2 are the longest-flying spacecraft in history; 42 years after they launched, both are still going strong and sending back data as they explore interstellar space. It's the farthest we've ever pushed into space. And the spacecraft were initially designed to last only five years.


원문출처 : https://www.cnn.com/2019/07/10/world/voyager-keeps-going-scn-trnd/index.html