Formation of Solar System

The video explains the nature of stars, focusing on the sun as the largest visible star. It details the formation of the solar system, highlighting the sun's central role. The video lists the eight planets in order of their distance from the sun and introduces a mnemonic to remember them. It describes the movements of planets, including rotation and revolution, and explains why Pluto is no longer considered a planet. The video concludes with a brief overview of other celestial objects in the solar system, such as moons, asteroids, and comets.

What criteria must a celestial body meet to be classified as a planet according to the IAU?

Why is Pluto no longer considered a planet?

What other celestial objects exist in our solar system besides the eight planets?