Alternates of Big Bang Cosmology

Globular Cluster

There are several alternate models which contradicts Big Bang cosmology. Here we briefly discuss some alternate rival models. 1. de Sitter cosmology (1917) It models the universe as spatially flat and neglects ordinary matter. The…

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Future according to Big Bang Theory

supernova

Before observations of dark energy, cosmologists considered two scenarios for the future of the universe. First, if the mass density of the universe were greater than the critical density, then the universe would reach maximum…

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Channels for Astronomical Information

stellar magnitude

Four entirely independent channels are known to exist by means of which information can reach us from distant part of the universe. 1. Electromagnetic radiation: gamma rays, x rays, ultraviolet, visible, infra-red and radio waves….

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