Multiple choice

Who was the first to present a sun-centered theory of the universe?

  1. Ptolemy

  2. Copernicus

  3. Galileo

  4. Einstein

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Nicolaus Copernicus was the Renaissance astronomer who proposed the heliocentric model, placing the Sun at the center of the universe rather than the Earth. This theory revolutionized our understanding of the solar system.