Quantum loop gravity

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Next point will be quantum loop gravity

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Goldilocks Zone (part-2)

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Is presence in Goldilocks belt enough for having life on a planet? No, besides distance from the sun, if the atmospheric condition of the planet is accurate to form and sustain water to its surface, can only have the possibility of life. For instance, like Earth and Mars, Venus too considered in the habitable zone of the sun, but life chosen the earth only. Why? NASA's Mars rover mission evidences the ancient bacterial life on mars . Later, due to the thin atmospheric layer it was not able to sustain water to its surface. On the other hand, Venus is too hot to origin the life. Its atmosphere consist a very thick layer of carbon dioxide. It absorbs sun energy and restricts revert it back, thus create a non habitable furnace.   Bottlenecks for origin of life in the Goldilocks zoned planets: Billions planets in such zones in the universe orbit around different stars. For instance, NASA claims its recently discovered  TRAPPIST-1 planetary system have ...
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Loop quantum gravity

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Loop quantum gravity Loop quantum gravity ( LQG ) is a theory of  quantum gravity , merging  quantum mechanics  and  general relativity , making it a possible candidate for a  theory of everything . Its goal is to unify gravity in a common theoretical framework with the other three  fundamental forces  of nature, beginning with relativity and adding quantum features. It competes with  string theory that begins with  quantum field theory and adds gravity. From the point of view of  Einstein 's theory, all attempts to treat gravity as another quantum force equal in importance to electromagnetism and the nuclear forces have failed. According to Einstein, gravity is not a force – it is a property of  spacetime itself . Loop quantum gravity is an attempt to develop a quantum theory of gravity based directly on Einstein's geometric formulation. To do this, in LQG theory space and time are  quantized , analogously to the w...
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