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I heard there are many alternative hypoteses for cosmological redshift, e g Fred Hoyle' s variation of mass and tired light. There are other ones?
Thanks.
Thanks.
An alternative hypothesis for cosmological redshift is the tired light theory, which suggests that the redshift observed in distant galaxies is not due to the expansion of the universe, but rather the light itself becoming weaker and "tired" as it travels through space.
The tired light theory proposes that as light travels through space, it gradually loses energy and becomes redder in color. This change in energy is then observed as a redshift, as the wavelength of light is stretched out.
There is currently no strong evidence that supports the tired light theory. The majority of evidence, including observations of the cosmic microwave background radiation and the large-scale structure of the universe, points towards the expansion of the universe as the cause of redshift.
The tired light theory and the Big Bang theory are fundamentally different in their explanations for the observed redshift. The Big Bang theory proposes that the redshift is a result of the expansion of the universe, while the tired light theory suggests that it is caused by the gradual loss of energy in light as it travels through space.
No, the tired light theory is not widely accepted by the scientific community. While it was proposed as an alternative to the Big Bang theory, the lack of supporting evidence and the overwhelming evidence in favor of the Big Bang have led most scientists to reject the tired light theory as a valid explanation for cosmological redshift.