Question

Galileo:

A.) discovered craters on the moon
B.) supported Copernicus' heliocentric theory
C.) was the first person to observe celestial bodies using a telescope
D.) all of the above

Answer 1

B:supported Copernicus heliocentric theory

Answer 2

D.) all of the above

Step-by-step explanation:

Galileo was the first person to point the telescope to sky and observe celestial bodies closely. He discovered craters on moon and four moons of Jupiter.

He also supported heliocentric model of the solar system given by Copernicus. He observed phases of Venus which are similar to phases of moon. These could be understood only if Venus revolved about the sun and not earth. This was the evidence which disproved geocentric model of Ptolemy and Aristotle.

Thus, correct option is D.