GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cosmic Background Radiation
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The observation that all galaxies appear to be moving away from us
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The observation that the milky way galaxy orbits a large black hole
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Red Shift
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Detailed explanation-1: -In all known galaxies of comparable size to the Milky Way, there is no other that has a supermassive black hole of such a low mass as our own.
Detailed explanation-2: -The astronomical field of galactic archaeology has improved so much since the advent of the ESA’s Gaia mission that we can now definitively date the age of the Milky Way. We now know it formed no later than 800 million years after the Big Bang: when the Universe was just 6% of its present age.
Detailed explanation-3: -Scientists can’t directly observe black holes with telescopes that detect x-rays, light, or other forms of electromagnetic radiation. We can, however, infer the presence of black holes and study them by detecting their effect on other matter nearby.