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How is the age of the Universe determined?
The age of the universe is determined by CMBR, which is left over energy from the Big Bang Theory. CMBR stands for Cosmic Microwave Background Radiation.
What energy source does the earth obtain most of its energy from?
The Sun. Second, the CMBR (C osmic M icrowave B ackground Radiation).
What do we call objects that emit light in space?
Stars, quasars, clusters, nebulae, galaxies, superclusters, the CMBR (Cosmic Microwave Background Radiation).
Can the CMBR be redshifted starlight?
The odds are very much against it. The CMB matches expectations following from the Big Bang too well for it to be coincidental.
How is the wavelength of CMBR likely to change if at all over the next billion years?
The wavelength of cosmic microwave background radiation (CMBR) is not expected to significantly change over the next billion years. The expansion of the universe will cause the wavelengths to stretch slightly due to cosmological redshift, but this effect is relatively small over such a timescale.
How does cosmic background radiation provide evidence for the Big Bang theory?
The Cosmic Microwave Background Radiation (CMBR) is an isotropic (to one part in 10,000) and continuous radiation from outer space, whose spectrum is identical to that of a blackbody at 2.7K . All of these absolute facts are easy to explain if one assumes Big Bang Cosmology to be true. Indeed, they were predicted by proponents of BBC 18 years before anyone looked for radiation from space. Nothing about CMBR -- not even its existence -- can be explained by any alternative to BBC. Those who deny BBC are reduced to stating, "I agree to the facts about CMBR, but I have absolutely no explanation for its existence, isotropy, or spectrum."
What has cosmic microwave background radiation?
The CMBR is microwave radiation coming to our Earth with the same intensity (to within one part in 100,000) from all parts of the sky. Its spectrum is exactly that of a black-body -- ie, like that of a glowing object -- at a temperature 2.7 degrees above absolute zero. It is believed to be the remnant of recombination, 377,000 years after the Big Bang. No other hypothesis about our Universe can explain the CMBR other than saying, "It's just there and I don't know why it should be."
A sentence for cosmic?
In the 1960s, microwave radiation was detected coming from space and no particular source, and this radiation was dubbed the Cosmic Microwave Background Radiation (CMBR).
What penzias and Wilson did to find CMBR?
Arno Penzias and Robert Wilson discovered the Cosmic Microwave Background Radiation (CMBR) in 1965 while working with a sensitive microwave receiver at Bell Labs. They initially encountered a persistent noise that they couldn't attribute to any known sources, including their equipment or the Milky Way. After ruling out various potential causes, they realized that the noise was actually the remnant radiation from the Big Bang, providing strong evidence for the Big Bang theory. This groundbreaking discovery earned them the Nobel Prize in Physics in 1978.
How was cmbr discovered?
The Cosmic Microwave Background Radiation (CMBR) was discovered in 1965 by radio astronomers Arno Penzias and Robert Wilson, who detected a persistent noise in their radio telescope that was uniform in all directions. Initially, they attributed the noise to various sources, including equipment issues and terrestrial interference. However, it was later identified as the remnant radiation from the Big Bang, providing strong evidence for the Big Bang theory. This discovery marked a significant milestone in cosmology, confirming predictions made by earlier theoretical work.
Is it possible to see the big bang?
No. We can observe some of the effects, such as the CMBR (cosmic microwave background radiation) and the expansion of the visible universe, but seeing it directly would require being outside the universe itself - which is impossible for us.
What sort of radiation suggested evidence for the Big Bang?
The existence, isotropy, and spectrum of the cosmic microwave background radiation (cmbr) is extremely easy to explain if Big Bang Cosmology is true; it is impossible to reasonably explain even its existence with any alternate cosmological hypothesis.
