HUBBLE LAW Meaning and
Definition
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The Hubble Law, also known as Hubble's Law, is a fundamental principle in cosmology that describes the relationship between the distance of galaxies from Earth and their velocity of recession. It was formulated by the American astronomer Edwin Hubble in the 1920s and is based on his groundbreaking observations of distant galaxies.
According to Hubble's Law, the recession velocity of a galaxy is directly proportional to its distance from us. In other words, the farther a galaxy is from Earth, the faster it appears to be moving away. This observation led to the conclusion that the universe is expanding.
Mathematically, Hubble's Law is expressed as v = Hd, where v represents the recession velocity of the galaxy, d is its distance from us, and H is the Hubble constant. The Hubble constant quantifies the rate at which the universe is expanding and represents the slope of the linear relationship between velocity and distance.
The Hubble Law revolutionized our understanding of the cosmos and provided strong evidence for the Big Bang theory. It suggests that the universe originated from a single point in space and has been expanding ever since. The Hubble Law has served as the foundation for further investigations into the nature of the universe, such as the age of the universe and the existence of dark matter and dark energy.
Common Misspellings for HUBBLE LAW
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Etymology of HUBBLE LAW
The term Hubble Law is named after the American astronomer Edwin Hubble. It derives its name from his significant contributions to the understanding of the expanding universe and the relationship between distance and the recessional velocity of galaxies. Edwin Hubble made groundbreaking observations in the 1920s that demonstrated the existence of galaxies beyond our Milky Way, and he found a correlation between the distance of these galaxies and their recessional velocity. This relationship is now known as the Hubble Law or Hubble's Law.
