Aurora borealis and the Milky Way over Qaleraliq, Greenland. The aurora borealis, or northern lights, is a coloured light display that is visible in the night sky, usually only at high latitudes. It occurs when charged and energetic particles from the Sun (the solar wind) are drawn by Earth's magnetic field to the polar regions. Hundreds of kilometres up, they collide with gas molecules and atoms, causing them to emit light. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Casado, Juan Carlos |
Bildgröße: | 7845 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |