Trivia: Who was the first person to view Mars through a telescope?
Copernicus
Galileo Galilei
Leonardo Da Vinci
Tyco Brahe
Correct Answer: Galileo Galilei
So why is this answer correct? : In 1609, Galileo Galilei became the first person to observe Mars through a primitive telescope. His observations of Mars lead him to theorize that the planets revolved around the sun rather than the Earth — a conclusion that would lead him into conflict with the Catholic Church.