Quasar

Référence de la vidéo 11927226
Three views of a quasar, animation. Quasars are the most luminous objects in the universe. They are formed by a supermassive black hole at the centre of a galaxy, which emits a huge amount of radiation in two polar jets, due to energy released by the black hole absorbing infalling matter. All quasars known are billions of light years away, meaning that they were more common earlier in the history of the universe. It is thought that they represent a stage in the formation of a galaxy, during which the central black hole rapidly absorbs material from its surroundings. Once there is not enough material left to continue to power the quasar, it becomes a normal galaxy.
Licence : Droits gérés
Crédit : Science Photo Library / HUBBLE / ESA / LARS LINDBERG CHRISTENSEN / M. KORNMESSER
Model Release : Non requis
Property release : Non requis
Durée : 24 Secondes
Aspect ratio : 4/3
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  • This clip may not be used by or to promote the arms, nuclear power or tobacco industries or any religious organisation, or in any discriminatory way, or to imply the endorsement by ESO of any product, service or activity

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