Galaxienverschiebung
Galaxienverschiebung refers to the phenomenon where the light from distant galaxies is shifted towards longer, redder wavelengths. This cosmological redshift is a key piece of evidence supporting the theory of the expanding universe. When astronomers observe the light spectrum of a galaxy, they look for characteristic absorption or emission lines, which correspond to specific elements. If these lines appear at longer wavelengths than they do in a laboratory setting on Earth, it indicates that the galaxy is moving away from us.
The amount of redshift is directly proportional to the distance of the galaxy. This relationship, known as
Galaxienverschiebung is measured using spectroscopy, where light is dispersed into its component wavelengths. By comparing the