Sunspots. Time-lapse Solar Dynamics Observatory (SDO) footage of sunspots (dark areas) on the surface of the Sun. Sunspots are areas of magnetic activity that are cooler than the rest of the Sun's surface. They range in size from hundreds to thousands of kilometres across. This footage was obtained on 14-16 April 2014. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / NASA / Solar Dynamics Observatory |
Model Release : | Non requis |
Durée : | 28 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |