`redshift` Related Article Results

The Doppler effect is the phenomenon in which the frequency or wavelength of a wave, as measured by an observer, changes due to the relative motion between the wave source and the observer. When the source approaches the observer, the perceived frequency increases (wavelength shortens), and when the source recedes, the frequency decreases (wavelength lengthens). This physical phenomenon was first described by Austrian physicist Christian Doppler and has broad applications ranging from acoustics

Hubble's Law is a cosmological relation stating a linear relationship between the recession velocities of galaxies and their distances from the observer. This relationship was established in 1929 by Edwin Hubble through the comparison of distance measurements of galaxies with spectroscopic redshift observations. Hubble's work demonstrated that the redshift observed in the light of distant galaxies increases systematically, revealing that galaxies are moving away from each other. These observatio

GN-z11 Galaxy is a galaxy considered one of the most distant and oldest known galaxies in astronomy literature today. It was first discovered and confirmed through observations made by the Hubble Space Telescope in 2016. According to the cosmic timeline, GN-z11 formed approximately 400 million years after the Big Bang, that is, around 13.4 billion years ago. With this feature, it sheds light on the early periods of the universe, providing information about galaxy formation, matter accumulation,