How Far Light Travels before Dropping Below the Visible Frequency Range

The purpose of this study is to take measurements suggesting the maximum distance light travels before it attenuates below the visible frequency range, i.e., drops out of sight. The frequency of light gradually decreases as it traverses vast distances in space (attenuates). This phenomenon is known as a redshift because visible light has a propensity to shift toward the red end of the spectrum. There eventually comes a point at which light drops beneath the red end of the spectrum and is no longer visible to us. When redshift is properly understood as attenuation, its measurements enable us to calculate at what distance light drops beneath the visible spectrum. Beyond this limiting distance, there are countless billions of galaxies that are invisible to us.