NASA's Solar Dynamics Observatory records detailed images of the sun for 24 hours a day and gives us unprecedentedly clear pictures of its movement.
원문출처 : http://edition.cnn.com/video/data/2.0/video/tech/2015/02/16/vo-nasa-solar-dynamics-observatory-5-years.cnn.html?eref=edition
원문출처 : http://edition.cnn.com/video/data/2.0/video/tech/2015/02/16/vo-nasa-solar-dynamics-observatory-5-years.cnn.html?eref=edition