Which provides an accurate order for changing models of our solar system, starting with the oldest, and ending with the most recent changes
1. Geocentric model: The earliest and most ancient model of our solar system was the geocentric model, where Earth was believed to be at the center and all celestial bodies revolved around it. This model was mainly promoted by ancient civilizations, such as the Ancient Greeks.
2. Heliocentric model: The heliocentric model, proposed by Nicolaus Copernicus in the 16th century, challenged the geocentric view. It suggested that the Sun is at the center of the solar system, with the planets, including Earth, orbiting around it.
3. Laws of planetary motion: Johannes Kepler, in the early 17th century, proposed three laws of planetary motion after carefully examining the positions and movement of planets. These laws established that planets move in elliptical orbits around the Sun and that their orbital speed varies.
4. Gravity and universal gravitation: Sir Isaac Newton, in the late 17th century, introduced the concept of gravity and formulated the laws of universal gravitation. This theory explained how objects, including planets, are drawn towards each other by a gravitational force. It provided a comprehensive explanation for the movement and behavior of celestial bodies within the solar system.
5. Expansion of the solar system: In the 20th century, observations and discoveries led to the understanding that the solar system extends beyond the planets. Objects such as asteroids, comets, and dwarf planets like Pluto were identified, expanding our knowledge of the solar system's boundaries.
It is important to note that changes within our understanding of the solar system are ongoing, with new discoveries and advancements in scientific knowledge regularly adding to our understanding.