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How does cosmic microwave background radiation and red shift shown by distant galaxies support the big bang theory?
Wiki User
∙ 8y ago
Red shift is the easiest to understand. Galaxies move away from us, therefore they move away from one another, therefore they must have been closer together in the past. (Redshift is usually interpreted to be the result of the cosmological Doppler effect.)As for the cosmic microwave background, both its relative homogeneity and the degree of minor inhomogeneities are basically in close agreement with the predictions of Big Bang + Inflation.
Wiki User
∙ 8y ago
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What destroyed the steady state theory?
Briefly, the Steady State theory assumes that the Universe looked the same in the past as it does now. Observations of distant galaxies showed that this is not the case - distant galaxies are quite different to the ones that are closer by. Note that if you look at distant galaxies, you are observing the past of the Universe, because of the time it takes light to get here. That evidence played a part, but it was the detection of the "cosmic microwave background radiation". That was what convinced most astronomers that the Big Bang Theory was correct.
What is the evidance for the big bang?
The expansion of the Universe, as can be seen by the redshift of distant galaxies; also, the cosmic background radiation. Read the Wikipedia article on "Big Bang" for more details.
What tends to support the Big Bang Theory?
Mainly, the redshift of distant galaxies, which indicates that they are moving away from us. Also:* Calculations, to the effect that the Universe can't be static. * The microwave background radiation, which agrees closely with the theory. * The percentage of elements (and isotopes) in the Universe, which also closely agrees with the theory.
How does electromagnetic radiation from distant galaxies support the big bang theory?
Given by the fact that electromegnetic energy cannot be seen and how the radiation from distant galaxies supports the big bang theory? it can easily be said that...I dont know the answer. (0_0)
What two discoveriessupported the big bang theory?
Supporting evidence includes:* Redshift of distant galaxies, usually interpreted to be due to the expansion of the Universe. * The cosmic microwave background radiation closely agrees with what is expected from the Big Bang theory. * The distribution of elements (and isotopes) in the Universe closely agrees with what is expected from the Big Bang theory.
How do we know that the Universe is expanding?
The main evidence is the redshift of distant galaxies; the only sensible explanation is a cosmological redshift, related to an expanding Universe. Other pieces of evidence are the microwave background radiation, which agrees very well with the predictions made by the Big Bang theory, and Olber's paradox - among others.
What details provide proof of the big bang theory?
The universe and all the planets and stars in it are apparently slowing moving outwards. +++ Also a pervasive background microwave radiation. The outwards movement is shown by the light being "red-shifted" by Doppler effect, but is not apparent from planets or even individual stars, only from very distant galaxies.
How did people discover 'The big bang'?
There were several parts to this discovery; for instance, theoretical calculations (based on the General Theory of Relativity) that showed that (under most circumstances) the Universe could not remain static; the discovery that all distant galaxies move away from us (the farther away they are, the faster they move away); and the discovery of the cosmic microwave background radiation.
What evidence in 1956 that supports the big bang theory?
1) The existence, isotropy, and spectrum of the Cosmic Microwave Background Radiation. It was predicted sixteeen years before it was detected, and has been found to be exactly as proponents of Big Bang Cosmology (BBC) say it should be. All other hypotheses are reduced to saying, "I know the CMBR is there, I just have no explanation for it." 2) The red-shift of all distant galaxies, with the size of the red shift being proportional to the galaxies' distance from us. All observations of this red shift support a Universe that was far denser about 13.7 billion years ago. 3) The ratio of hydrogen and helium in our Universe is exactly as predicted by BBC. 4) Quasars are distant from us (ie, far in our past), but none are close. 5) The ratio of isotopes with long half-lives to their decay products show none of the former existed prior to about 12 billion years ago. 6) No white dwarf stars -- which will remain stable for tens of trillions of years -- have been found older than about ten billion years. The evidence for BBC is as strong as the evidence that our Earth goes around our Sun.
How can you define a radar?
measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects
What are three forms of evedence used to support th big bang theory?
Three important pieces of evidence are:* The redshift of distant galaxies. This means that galaxies are moving away from us. * The percentages of elements and isotopes. This closely matches predictions from theory. * The cosmic background radiation. This, too, closely matches predictions from theory.
The visible part of distant galaxies is the galaxies'?
Stars
