GENERAL KNOWLEDGE

Detailed explanation-1: -This phenomenon, known as redshift, reveals that the farther a galaxy is away from us, the redder its light will appear. Hubble also demonstrated that galaxies farther away from us are receding faster than those nearby – a fundamental observation now known as Hubble’s Law.

Detailed explanation-2: -Edwin Hubble, for whom the Hubble Space Telescope is named, was one of the leading astronomers of the twentieth century. His discovery in the 1920s that countless galaxies exist beyond our own Milky Way galaxy revolutionized our understanding of the universe and our place within it.

Detailed explanation-3: -A century ago Edwin Hubble first discovered that galaxies were actually other so-called “island universes, ‘’ distributed far beyond our Milky Way in all directions. Edwin Hubble cataloged galaxy shapes: spiral, elliptical, and irregular, and pondered if there was an evolutionary link.