Who was the first astronomer to make measurements of the sky with a telescope?
A) Nicolaus Copernicus
B) Tycho Brahe
C) Galileo Galilei
D) Isaac Newton

Question

Quizplus · Accepted Answer

Galileo Galilei is credited with being the first astronomer to make detailed observations of the sky using a telescope. He made numerous discoveries, including the four largest moons of Jupiter and the phases of Venus, which provided evidence for the heliocentric model of the solar system. While Copernicus and Brahe made important contributions to astronomy before him, they did not use telescopes in their work. Likewise, Newton made important contributions to physics and mathematics, but was not primarily an astronomer.

Who Was the First Astronomer to Make Measurements of the Sky