GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Aliens
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Red Shift
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Blue waves of nuclear radiation
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Green shift
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Detailed explanation-1: -Hubble’s brilliant observation was that the red shift of galaxies was directly proportional to the distance of the galaxy from earth. That meant that things farther away from Earth were moving away faster. In other words, the universe must be expanding. He announced his finding in 1929.
Detailed explanation-2: -Hubble’s finds in the Andromeda Nebula and in other relatively nearby spiral nebulae swiftly convinced the great majority of astronomers that the universe in fact contains a myriad of galaxies. (The current distance estimate of the Andromeda Nebula-now known as the Andromeda Galaxy-is 2.48 million light-years.
Detailed explanation-3: -The first detection of gravitational redshift came in 1959 after scientists detected it occurring in gamma-ray light emanating from an Earth-based lab.