Expanding universe

1929 Expanding universe

The book of science

Tom Sharp

Georges Lemaître, Edwin Hubble astronomy Expanding universe

Expanding universe


Hubble got the credit

The ratio of the velocity to the distance of objects in the universe is called Hubble’s constant, the rate of the expansion of the universe. The observation that more distant galaxies are receding more rapidly is called Hubble’s law. Georges Lemaître published these assertions in 1927 in Belgium and his paper did not get attention elsewhere. Lemaître also proposed the theory of the big bang, that all current vectors can be traced back to a single point and time, to the state of singularity.

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