Multiple choice general knowledge science & technology

Who for the first time observed that the universe is expanding and that the galaxies are receding away from each other?

  1. Albert Einstein

  2. Conrad Rontgen

  3. Galileo

  4. Edwin Hubble
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Edwin Hubble was the first to observe that the universe is expanding and galaxies are receding from each other. This became known as Hubble's Law (1929), showing that galaxies are moving away from us at speeds proportional to their distance - a fundamental discovery in cosmology.

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