As evidence supporting the Big Bang Theory, what does the redshift of light from galaxies indicate?
The universe is expanding. The red shift indicates that the light is moving away from the observer on earth.
The redshift of light from galaxies is a significant piece of evidence supporting the Big Bang Theory. The redshift of light refers to a shift towards longer wavelengths, or the shifting of light towards the red end of the electromagnetic spectrum. This occurs because the objects that emit light are moving away from us.
The redshift of light from galaxies indicates that the universe is expanding. According to the Big Bang Theory, the universe originated from a single point (singularity) around 13.8 billion years ago and has been expanding ever since. As the universe expands, galaxies move away from each other, causing the wavelengths of light emitted by these galaxies to stretch and shift towards the red end of the spectrum.
The observed redshift of light from galaxies provides evidence supporting the concept of an expanding universe and is consistent with the predictions made by the Big Bang Theory.
The redshift of light from galaxies is an important piece of evidence supporting the Big Bang Theory. It indicates that the universe is expanding.
When astronomers study the light coming from distant galaxies, they have noticed that the light is shifted towards longer wavelengths, or the red end of the spectrum. This phenomenon is known as redshift. The amount of redshift is directly related to the velocity at which the galaxy is moving away from us.
According to the Big Bang Theory, the universe started from an extremely hot and dense state about 13.8 billion years ago and has been expanding ever since. As the universe expands, the galaxies move away from each other. This expansion causes the wavelength of light traveling through space to stretch, leading to a redshift.
By measuring the redshift of light from galaxies, astronomers can calculate the velocity at which galaxies are moving away from us and the rate at which the universe is expanding. The observations of redshift provide strong evidence for the expansion of the universe and support the idea that the universe originated from a single, extremely dense point in an event known as the Big Bang.