GENERAL KNOWLEDGE

Detailed explanation-1: -Stars and galaxies dot its surface. The farther apart two galaxies are; the faster they recede from one another. The expansion is so rapid points far enough away from one another are expanding apart faster than the speed of light.

Detailed explanation-2: -Instead, what is happening is the space between them is expanding (just like the rubber band expanded, separating the dots fixed to it from each other). As the universe expands, the galaxies get farther from each other, and the apparent velocity will appear to be larger for the more distant galaxies.

Detailed explanation-3: -In the 1920’s, an astronomer named Edwin Hubble made the discovery that the farther galaxies seemed to be moving away faster. Hubble measured the amount of light that was coming from the distant galaxies, and, calculated the amount of ‘redshift’ in the color.

Detailed explanation-4: -Hubble’s law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth.