GENERAL KNOWLEDGE

GK

BIG BANG THEORY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Who discovered that the farther away a galaxy is the faster it is moving away from us, thus supporting the theory that the universe is still expanding from the force of the big bang?

A	Edwin Hubble
B	Albert Einstein
C	Sir Isaac Newton
D	Arno Penzias and Robert Wilson

Explanation:

Detailed explanation-1: -The American astronomer Edwin Hubble made the observations in 1925, proving that there is a direct relationship between the speeds of distant galaxies and their distances from Earth.

Detailed explanation-2: -In 1929, Edwin Hubble provided the first observational evidence for the universe having a finite age. Using the largest telescope of the time, he discovered that the more distant a galaxy is from us, the faster it appears to be receding into space. This means that the universe is expanding uniformly in all directions.

Detailed explanation-3: -In one of the most famous classic papers in the annals of science, Edwin Hubble’s 1929 PNAS article on the observed relation between distance and recession velocity of galaxies-the Hubble Law-unveiled the expanding universe and forever changed our understanding of the cosmos.

There is 1 question to complete.