This ancient civilization was considered as the Golden Age of Classical Astronomy.

• Babylonian

• Egyptian

• Greek

• Indian

When does a total eclipse happen?

• When the Earth is between the Sun and Moon, it casts shadow.

• When the Sun is between the Moon and Earth, it casts shadow.

• When the Moon is between the Earth and Sun, it casts shadow.

A Roman Scientist who attempted to examine the motion of planets using mathematical formula. He preserved the principles of Geocentrism, and uniform circular motion, where he added Epicycles, Deferent, and Equant to fully explain the motion of planets.

• Aristotle

• Claudius Ptolemy

• Nicolaus Copernicus

• Galileo Galilei

An Italian Scientist who discovered the Jupiter's four largest satellites, or moons using his telescope. He also discovered that Venus exhibits different phases just like our Moon.

• Aristotle

• Claudius Ptolemy

• Nicolaus Copernicus

• Galileo Galilei

A Greek Philosopher, Scientist, and Polymath who proposed that the Earth was the center of the Universe, where heavens must move in uniform circular motion.

• Aristotle

• Claudius Ptolemy

• Nicolaus Copernicus

• Galileo Galilei

Though he preserved the uniform circular motion that planets follow on their motion, this Renaissance Polymath, a great Scientist, concluded that the Sun, not the Earth, was the center of the Universe, known as Heliocentrism.

• Aristotle

• Claudius Ptolemy

• Nicolaus Copernicus

• Galileo Galilei

In the concept of Vertical motion, he believed that the velocity of a body is inversely proportional to the time it covers to travel certain height.

• Aristotle

• Galileo Galilei

In the concept of horizontal motion, he believed that there is no need to apply force for the object continuously move.

• Aristotle

• Galileo Galilei

In the concept of projectile motion, he believed that there is resistance on a medium that respond to the movement of the body. He called this antiperistasis.

• Aristotle

• Galileo Galilei

In the concept of 1st Law of Motion, he believed that there is necessary force to move a stationary body and to stop the object.

• Galileo Galilei

• Sir Isaac Newton