8. Each statement describes today's accepted Heliocentric model of our solar system EXCEPT:
The sun is in the center of our solar system
Each planet's orbits around the sun in an ellipse
The planets orbit the sun in nested spheres
All planets, including Earth, orbit the sun
The planets orbit the sun in nested spheres
The statement that describes today's accepted Heliocentric model of our solar system is:
"The planets orbit the sun in nested spheres."
In the Heliocentric model, the sun is at the center of our solar system and each planet's orbit around the sun is an ellipse. Additionally, all planets, including Earth, orbit the sun. However, the idea of planets orbiting the sun in nested spheres is not part of the current Heliocentric model.
To determine which statement does NOT describe today's accepted Heliocentric model of our solar system, let's evaluate each statement one by one:
1. The sun is in the center of our solar system: This statement is true and is a fundamental aspect of the Heliocentric model. In this model, the sun is considered the central body around which the planets orbit.
2. Each planet's orbits around the sun in an ellipse: This statement is also true and corresponds to Johannes Kepler's first law of planetary motion. According to this law, the planets' orbits are not perfect circles but rather elliptical in shape, with the sun situated at one of the foci of the elliptical orbit.
3. The planets orbit the sun in nested spheres: This statement does NOT describe today's accepted Heliocentric model. The Heliocentric model does not involve the planets orbiting the sun in nested spheres. Instead, it adheres to Kepler's laws, including the elliptical shape of planetary orbits, as mentioned earlier.
4. All planets, including Earth, orbit the sun: This statement is also true and aligns with the Heliocentric model. According to this model, all planets, including the Earth, orbit the sun rather than any other celestial body.
Therefore, the statement that does NOT describe today's accepted Heliocentric model of our solar system is:
- The planets orbit the sun in nested spheres