NASA states that the Earth and other planets do not revolve around the Sun and provides insights into planetary motions, contrasting with common school teachings.
NASA (National Aeronautics and Space) revealed new insights into planetary motion, Earth doesn't orbit directly around the Sun. Instead, both Earth and the Sun orbit a common point called the barycenter.
What Is Barycenter?
According to NASA, planets and stars actually orbit around a common center of mass, which is known as the barycenter. It's interesting to note that the barycenter doesn't always lie within the Sun, instead, it lies slightly outside the Sun's surface due to the gravitational pull of Earth and other planets.
Earth Orbit Around Barycenter:
As in our Solar system, the Sun's massive influence is a major factor in determining the location of the barycenter, and it typically remains near the Sun's center but not perfectly aligned with it.
The gravitational pull of large planets, particularly Jupiter and Saturn, can also cause the barycenter to shift outside the Sun from time to time.
This means that while we often think of planets as orbiting the Sun, they actually orbit a shared center of mass as a result of the gravitational influences of other celestial bodies.
Kepler's third law provides a framework for understanding the relationship between the masses of mutually revolving objects and the determination of orbital parameters, as explained by NASA.
Overall, Earth's path around the Sun is better described as orbiting this shared center of mass rather than a direct orbit around the Sun itself.
