NASA's Cassini spacecraft has begun an unprecedented series of space dives that will see it plunge through the icy rings of Saturn, in the final phase of its 20-year mission.
원문출처 : http://www.cnn.com/2017/04/26/health/nasa-cassini-ring-dive/index.html
원문출처 : http://www.cnn.com/2017/04/26/health/nasa-cassini-ring-dive/index.html