Flat,closed and open universes

Numéro d’image : 11887254
Flat,closed and open universes
Flat,closed and open universes. Artwork showing the geometrical curvatures of a 'flat' (left),'closed' (centre) and 'open' (right) universe. The galaxies are shown on a curved grid,which represents the overall geometry of the universe. The universes have planar,spherical and saddle curvatures respectively. The curvature of a universe is determined by the amount and density of matter and energy. In an open universe,the amount of matter is insufficient to prevent the universe expanding forever. In a closed universe,there is enough matter to halt the expansion,followed by a contraction to a Big Crunch. In a flat universe,the amount of matter has a critical value between these two extremes
Licence : Droits gérés
Crédit: Science Photo Library / Garlick, Mark
Taille de l’image : 7898 px × 3099 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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