Edwin hubble

Edwin Powell Hubble (November 20, &#;– September 28, ) was an Americanastronomer. Hubble's findings changed the scientific view of the universe.

Career

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In he showed that there are galaxies beyond our own, the Milky Way.^[1][2] Also, he developed a method for classifying galaxies.

Then he proved the galaxies were moving away from each other.

Hubble found the degree of Doppler effect (redshift) from a galaxy increased in proportion to its distance from Earth.

Edwin hubble theory

Doppler effect is the change in pitch or colour when an object or sound comes in (higher pitch, brighter color) or moves away (lower and darker). Redshift is observed in the light spectrum

In Hubble formulated what is called Hubble's law.

The law states that the greater the distance between any two galaxies, the greater their relative speed of separation. Georges Lemaître, a Belgianpriest and astronomer, had published the idea two years before in an obscure j