Artist's impression of a white dwarf, G29-38, accreting planetary material from a circumstellar debris disk. When the planetary material hits the white dwarf surface, a plasma is formed and cools via detectable X-ray emission. | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / Garlick, Mark |
Model Release : | Non requis |
Restrictions : | - |