This year has been a tough one no matter where you live in the world, but discoveries beyond our planet and dazzling images of the cosmos provided a bright spot in 2020.
원문출처 : https://www.cnn.com/2020/12/24/world/space-discoveries-milestones-2020-scn-trnd/index.html
원문출처 : https://www.cnn.com/2020/12/24/world/space-discoveries-milestones-2020-scn-trnd/index.html