Is it certain that the Earth goes around the Sun? What does modern scientific data have to say?

I’d like to thank Con for arranging this debate, I look forward to a positive exchange of ideas and point of view.

For Pro the task at hand is to demonstrate from scientific data that the Heliocentric Model of the Solar System is correct, and that the Geocentric Model that Con is advocating is not possible. Con stated, “I believe the universe rotates around the Earth.” I will show that according to modern science, that is impossible.

Introduction

The Heliocentric Model of the Solar System is the great unifying principle of astronomy. The conceptual framework it provides makes sense of a profoundly wide range of scientific facts, and it does so in a magnificent and comprehensive way. It provides a framework by which science can explain, unify, and order, a vast amount of disparate data into a consistent whole which provides tremendous coherence and clarity. To deny the Heliocentric Model of the solar system you must concomitantly bring into question the entire interwoven fabric of scientific research.

The argument for a stationary Earth requires the denial of a wide range of scientific disciplines, fundamental disciplines such as Classical Physics, Astronomy, Astrophysics, the Special and General Theory of Relativity, as well as associated disciplines of Observational Astronomy, Theoretical Astronomy, Gravitational Theory, Inverse-Square Law, Orbital Dynamics) and the Celestial Mechanics that scientifically describe the motion of bodies under gravitational influence. Con’s contention also entails a direct refutation of related disciplines like Geography and Navigation, Optics, Electromagnetism, and Cosmology which provides a galactic and cosmological context.

Con’s contention also denies the validity of Mathematics; the Heliocentric Model is fundamentally mathematical. and the associated laws of motion and gravitation are expressed mathematically, requiring advanced algebra, trigonometry, calculus, and analytical geometry.

These scientific disciplines (and others) are interconnected and collectively demonstrate the truth of the Heliocentric Model and concurrently establish the undeniable fact that Con’s Geocentric Model is not true.

Summary:

Science is not a set of isolated facts or a list of various models to select from, it is an integrated network of interrelated disciplines, methods, and applications.

The Heliocentric Model is a multidisciplinary achievement that forms a coherent framework for systematic understanding across multiple related fields. It facilitates interdisciplinary research, develops unified scientific frameworks, and enables the further integration of scientific knowledge. The Heliocentric Model is also an essential framework for addressing the real-world challenges of space exploration, navigation, communications, predictive celestial events, meteorology, and many other connected disciplines of science and technology.

Because of the interrelated aspect of the sciences, you can't really propose that the Heliocentric Model is false and the Geocentric Model is true without being fundamentally anti-scientific. If you could in fact deny the Heliocentric Model, it would, in effect, unravel the world of science.

Observational and Theoretical Evidence

Stellar Parallax

Parallax is the apparent change in the position of a closer object to a further object when viewed from spatially separated lines of sight. Hold your thumb out in front of your face, close your left eye and note where your thumb is against the background, then close your right eye, you will see your thumb in a different place against the background. Alternating the eye you look with makes the thumb seem to jump back and forth against the wall behind it, this is an example of Parallax.

The phenomenon results from perspective change and can be calculated very accurately with trigonometry.  Earth’s orbital diameter around the sun is roughly 186 million miles, providing a separation perspective for measuring Parallactic Displacement. Stellar Parallax involves using a closer star relative to a farther star and examining the different perspectives six months apart. The closer star’s change in position relative to the farther star, as well as the distance between the two points of view, can be exactly calculated mathematically. This observation provides direct evidence of Earth’s movement through space, and would not occur if the Earth were stationary, proving Earth’s movement, and disproving the idea that Earth is stationary in space. Modern technology such as the European Space Agency's Gaia Mission measures the Parallax of over a billion stars with pinpoint accuracy, giving us an almost perfect 3D map of our galaxy.

If Earth was stationary, we would not see the annual cycle of Trigonometric Parallax and the predictable inverse correlation with how far away the stars are over the period of a year. Stellar Parallax provides demonstrable proof that the earth is moving through space.

Geometry and the Doppler Effect

Earth moves through space at different speeds depaending on what you compare it to, ranging from about 1,000 miles per hour for its spin to over 1.3 million miles per hour for cosmic movement. Here is how fast Earth travels on multiple levels.

1. Rotation: Earth spins at about 1,000 miles per hour at the equater.
2. Solar Orbit: Earth orbits the Sun at an average speed of about 67,100 miles per hour
3. Galactic Orbit: The Sun and our entire solar system rush around the center of the Milky Way galaxy at roughly 514,000 miles per hour
4. Cosmic Motion: The Milky Way itself moves through intergalactic space at well over 1.3 million miles per hour.

Astronomers use straightforward geometry, time tracking, radar measurements and the Doppler Effect to measure circumference and rotation time, orbital distance, and length of the year which allows straightforward mathematical solutions. For Galactic Speed, the Doppler Effect is used. If a star or cosmic object is moving toward us, its light waves compress, shifting toward the blue end of the spectrum (blueshift) and if an object is moving away from us, its light waves stretch out, shifting toward the red end of the spectrum (redshift). Astronomers have used these tools to measure the speed of Eart in multiple domains, thus demonstrating that the Earth is not stationary.

Aberration of Starlight

The earth is moving through space at over 1.3 million miles per hour, this results in an optical phenomenon called the Aberration of Starlight, which demonstrates Earth’s movement, while denying Con’s contention that Earth is stationary.

To understand Aberration, imagine you are in a car in the rain, when the car is stationary, the rain is coming down vertically and hitting the car at a 90% angle, then drive the car fast and the angle of the rain hitting the car changes, this change in the orientation of the rain is determined by a straightforward mathematical calculation. As Earth orbits the Sun, we can measure the “tilt” of incoming starlight, the direction of this measurable tilt changes as the direction of the Eart’s movement changes in its orbit. The tilt and direction of the Aberration of Starlight is predicted exactly by the Heliocentric Model and corresponds to the Earth’s orbital trajectory. This phenomenon would not be observed if the Earth were stationary.

Retrograde Motion

Outer planets exhibit Retrograde Motion, occasionally appearing to stop and then move backward against the background stars.This would be physically impossible given the mechanics of Gravity and Newton’s Laws of Motion if the Earth were not moving. This Retrograde Motion can only be explained by the fact that Earth, moving faster in its inner orbit, overtakes an outer planet like Mars, causing the planet to appear to move backward against the stars.

Planetary Phases

Telescopic observations show that Mercury and Venus exhibit a full set of phases (like the moon does). The only way for this to happen is if these planets orbit the sun rather than the Earth as Con contends.

Physics of Orbital Dynamics

Earth's orbital radius and period are mathematically defined by the mass of the Sun and Earth through Newton's Law of Universal Gravitation and Kepler's Third Law. The attractive force between the Sun and Earth depends directly on the product of their masses and inversely on the square of the distance between them. The mass of the Sun is about 333,000 times greater than the mass of the Earth, this explains the Earth’s orbit around the Sun.Con’s Geocentric Model violates the laws of gravity and motion.

Speed of Light Limitation (Case Closed)

Einstein’s Special Theory of Relativity set a maximum speed limit of roughly 186,000 miles a second. As an object approaches the speed of light its mass increases until it reaches infinity at the speed of light. This sets an upper limit to speed; it is impossible for anything to travel faster.

The most damaging consideration that makes Con’s contention that the Universe orbits a stationary Earth impossible, comes from calculating the resultant speeds of distant celestial objects. The closest Galaxy is the Canis Major Dwarf Galaxy which is 25,000 light-years away. The farthest is galaxy MoM-z14 at around 34 billion light-years. Calculating the orbital distance that these galaxies must travel in a year is straightforward Mathematics (double the distance times Pi). Con’s argument for a Universe orbiting a stationary Earth would require the Canis Major Dwarf Galaxy to be traveling at over 16 MILLION TIMES THE SPEED OF LIGHT, and MoM-z14 traveling at over 20 TRILLION TIMES THE SPEED OF LIGHT, this is outrageously impossible of course.

It was your Debate in the first place, I only accepted the debate you arranged. You must have had an argument in mind when you set up the debate in the first place. I'm curious, what was your argument?

Even if "A lot of scientists say it's possible." were true, and it is not the least bit true, it would still be one of the weakest arguments I ever saw. A lot of people think Elvis is alive, that doesn't make it true.

Can you be a little more specific than "A lot of scientists"?

Even better, how about, you know, responding to my argument.

You solicited my argument and in response I presented proof that it is not possible. Please name some scientists that say the Canis Major Dwarf Galaxy could be traveling at over 16 MILLION TIMES THE SPEED OF LIGHT, and that MoM-z14 can be traveling at over 20 TRILLION TIMES THE SPEED OF LIGHT (Preferably, scientists who didn't get their science degree at Trump University).

Con's entire argument is that "Science is dead! If all the scientists are wrong, then whom can we trust? Heliocentrism is a cult.", I will address each of Con's points seperately.

Argument 1) "Science is dead!"

Reply: No, it isn't, it is alive as an ongoing, evidence-based process of discovery used to understand how the universe works.

Argument 2) "If all the scientists are wrong, then whom can we trust?"

Reply: All scientists are not wrong, you can trust scientists regarding the systematic study of the physical, natural world through observable, measurable, and verifiable evidence

Argument 3) "Heliocentrism is a cult."

Reply: Heliocentrism is not a cult, it is a scientific fact. Please refer to my first argument for a brief review of scientific evidence supporting Heliocentrism.

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