Birth Of Planetary System
by Dr Seth Shostak/science Photo Library
Title
Birth Of Planetary System
Artist
Dr Seth Shostak/science Photo Library
Medium
Photograph - Photograph
Description
Artwork representing the formation of a planetary system around a star based upon the nebular hypothesis. According to this model a solar system derives from the contraction of a rotating disc- shaped nebula mainly formed by hydrogen, helium and dust grains. The contraction may be triggered by shock waves from a nearby supernova explosion or simply by the mutual gravitational attraction of the contents of the nebula. The central part of the nebula collapses into a protostar. Collisions between dust grains in the outer regions of the nebula lead to the formation of small bodies (few kilometres across), which then by accretion will develop into planets.
Uploaded
September 24th, 2018
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