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Photo name: Universe Timeline
Picture category: Physics
Image size: 72 KB
Dimensions: 800 x 576
Photo description: This diagram shows a universe timeline as suggested by many scientists and theoretical physics experts. This popular timeline of the universe has different stages which include: quantum fluctuations, inflation, dark ages, first stars, the development of galaxies and planets as well dark energy accelerated expansion. According to this theory, the big bang expansion has been taking place for 13.7 billion years.