# data[].attributes.body
His belief was that the Earth was the center of the universe.
Claim: All objects in the sky moved in perfectly circular patterns around the Earth
Flaw: The model did not explain retrograde motion, which is how planets seemed to move backward, an example being Mars. Another flaw in the model is that it did not explain why plants changed brightness.

# data[].attributes.body
Type of model: Geocentric
Main claim: Explained retrograde motion with epicycles, which are the planet's own circular orbit around an imaginary point that revolves around a larger circular path around Earth.
Flaw: The epicycles were complicated to explain, and in order for it to work, complicated models with epicycles changing in speed were made. This was hard to keep track of, and it was only accepted because "that's just how it works."

# data[].attributes.body
Type: Geocentric with Epicycles
Claims: Suggested Earth was a sphere, and also claimed that the Moon's light was a reflection of light from the Sun. Also suggested that Earth spins around its own axis
Flaw: Still depended on epicycles to explain movements of other planetary systems, which was influenced by Ptolemy's model. It faced the sane complications as earlier models.

# data[].attributes.body
Type: Heliocentric, thought the sun was the center of the universe
Claim: Came up with a heliocentric model, where the Sun is the center of the universe/solar system with all the planets revolving around it.
Flaws: All orbits kept the same speed, and the heliocentric model was still bad at predicting other planets' movement.

# data[].attributes.body
Type: Heliocentric model
Claim: Suggested that instead of orbits being perfectly circular, it would be elipses. This made the math of predicting planetary movement easier. He also explained that the closer a planet was to the sun in its orbit, the faster it moved.
Flaw: Predicted the ratios of the radii of planetary orbit with the five solids that you can construct with regular polygons in the three-dimensional world. Most of the ratios lined up, except for Mars.

# data[].attributes.body
Type: Heliocentric model
Claims: With the invention of the telescope, he found the four biggest moons of Jupiter (Ganymede, Callisto, Io, and Europa) He also found that Venus went through phases like the moon, and also found that it appeared much bigger when full. This made no sense in the geocentric model, and lined up in the heliocentric model.
Flaws: Believed that the Earth had tides due to the "inconsistent orbit" around the sun, which was not the case because Earth moves a consistent orbit.

# data[].attributes.body
Type: Heliocentric model
Claims: Believed that the universe was static and infinite with an infinite amount of stars, and introduced gravity which explained orbits.
Flaw: Even with his view of gravity, the subject of planetary movement was still hard to explain, like with Mercury.

# data[].attributes.body
Now that we have incredibly advanced technology, we have a completely new understanding of the solar system that some of the first philosophers like Aristotle. All planets revolve around the sun, it is simply false when people say that every planet revolves around the Earth. We are also now able to see stars beyond the Solar System thanks to the Hubble Telescope, which is incredibly powerful. It has also found many universes and different planets thousands of light years away. With all of this information, we have compiled it into what we know as the observable universe.

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https://earthsky.org/astronomy-essentials/what-is-retrograde-motion/#:~:text=There%20are%20real%20retrograde%20motions,retrograde%20orbits%20around%20their%20planets.

https://en.wikipedia.org/wiki/Indian_astronomy

https://farside.ph.utexas.edu/books/Syntaxis/Almagest/node3.html

https://www.newworldencyclopedia.org/entry/aryabhata#Motions_of_the_solar_system

https://www.thegreatcoursesdaily.com/what-johannes-kepler-got-wrong/

https://medium.com/starts-with-a-bang/the-scientific-failure-of-the-original-elegant-universe-fbe009b8388e

https://ca.pbslearningmedia.org/resource/phy03.sci.phys.mfw.mistake/galileos-big-mistake/

https://arxiv.org/ftp/arxiv/papers/0807/0807.1064.pdf#:~:text=Newton%20also%20believed%2C%20according%20to,Universe%20was%20static%20and%20infinite.&text=According%20to%20it%2C%20the%20matter,neighbors%2C%20by%20the%20entire%20universe.

https://www.nbcnews.com/mach/science/einstein-showed-newton-was-wrong-about-gravity-now-scientists-are-ncna1038671