";s:4:"text";s:2687:" The widely accepted theory for the origin and evolution of the universe is the Big Bang model, which states that the universe began as an incredibly hot, … Abstract. a nebula). Interpretation: At the centre of the universe there is a giant supercluster of infalling galaxies, which includes our own. If most of the star formation at these epochs was in low-mass systems, there is a good fit to predictions from structure-formation simulations for a Universe whose matter density is dominated by cold dark matter (CDM), which gives bottom-up or hierarchical histories for mass clumping … How did we get here? In order to understand how the Universe has changed from its initial simple state following the Big Bang (only cooling elementary particles like protons and electrons) into the magnificent Universe we see as we look at the night sky, we must understand … On still larger scales, the growth of structure is quenched by gravitational repulsion due to dark energy , so there is no further clumping, and the universe … Alas! The order and arrangement of the planets and other bodies in our solar system is due to the way the solar system formed. The earliest stages of the universe's existence are estimated as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level. This view is called the geocentric model of the universe. On the largest scales, the universe exhibits a web-like structure with filaments, sheets, and voids, up to scales of roughly 300 million light years .