Astronomers around the world are trying to track down a small, fast-moving object that is zipping through our solar system.
원문출처 : http://www.cnn.com/2017/10/27/us/mystery-object-solar-system-trnd/index.html
원문출처 : http://www.cnn.com/2017/10/27/us/mystery-object-solar-system-trnd/index.html