# data[].attributes.body
Stagira, Chalcidice

# data[].attributes.body
He found that earth was the center of the universe, and that the positions of the stars would change if the earth was moving around something. He called these star movements a parallax.

# data[].attributes.body
This was important because it was one of the first theories to be made concerning the position of the earth in the universe. He started the chain of many theories to come. Although his was incorrect, he still was very important to the history of the solar system as we know it.
Fun facts: Aristotle’s father was the personal physician to the king, Amyntas of Macedon.

# data[].attributes.body
- Aristotle’s father was the personal physician to the king, Amyntas of Macedon.
- Aristotle's name means, "the best purpose"

# data[].attributes.body
Samos, Greece

# data[].attributes.body
Aristarchus is famous for creating the first heliocentric model of the universe. Not a lot of people would accept his idea at the time, but he still made important scientific discoveries by attempting to measure the distance between Earth and Moon.

# data[].attributes.body
This was important because even though his ratio of distance was too small, this still acted as an inspiration to many scientists in the future. Not to mention, he was the first to come up with the correct model of the universe in the first place.

# data[].attributes.body
Full name: Aristarchus of Samos

# data[].attributes.body
Alexandria, Egypt (part of Ancient Rome at the time)

# data[].attributes.body
He figured out the movements of the planets. He wrote a book that described the movements of the planets. This book was called the Almagest, and contained up to 800 year old information. He also created a geocentric model of the solar system. His model said that the planets moved by themselves in small circles, then together in larger circles, (all at constant speeds and the circles being perfect).

# data[].attributes.body
This theory of his helped scientists in the future to discover how the planets moved.

# data[].attributes.body
Ptolemy was born in Egypt, a place different than the birthplace of the other early thinkers.

# data[].attributes.body
Toruń, Poland

# data[].attributes.body
Created the first detailed heliocentric model of the solar system. Combined Ptolemy’s “wheels on wheels” idea with Artistacharus’s heliocentric model to provide more information and a more accurate model.

# data[].attributes.body
His discoveries were seen as the first step into creating a modern (understanding of the) solar system.

# data[].attributes.body
Copernicus, in his time, could still only make observations with the naked eye, meaning his observations were phenomenal for the technology he possessed.

# data[].attributes.body
Weil der Stadt, Germany

# data[].attributes.body
Discovered that planets traveled in ellipses, not in perfect circles. He also wrote Kepler’s laws of planetary motion.

# data[].attributes.body
These laws are still followed today, and were drastically different than the observations made previously. Kepler really changed history and science.

# data[].attributes.body
He was a mathematician and an astronomer.

# data[].attributes.body
Pisa, Italy

# data[].attributes.body
Galileo did a lot of things, but to do with the solar system, he improved the newly invented telescope, making it much more powerful. He used his new device to observe the planets and stars, and studied the different moons orbiting Jupiter. This proved that other things in space could be orbited besides earth, supporting the heliocentric theory. He also compared Venus’s phases to the Earth’s moon.

# data[].attributes.body
His discoveries were important because they stood as a base for other scientists to build upon. He improved the telescope for future use, and helped people understand the universe more deeply.

# data[].attributes.body
Galileo approached the questions he had using scientific methods. He also made significant discoveries about GRAVITY by dropping two different weighted objects off the leaning tower of Pisa.