The crossing star theory (Chamberlain and Moulton 1905) The assumptions of the crossing star theory assumed that the solar system was originally the Sun, A huge star approached to the Sun, This star attracted...
The Solar Nebular Model Astronomers think that the most widely accepted model for explaining the evolution and formation of our solar system is ” the Solar Nebular Model ” which states that the planets...
The solar system the solar system consists of the Sun ( star ) , Eight planets ( revolving around the Sun in fixed orbits ) , the comets , the asteroids and the moons...
The Universe The universe is the wide and extended space that contains all the galaxies , the stars , the planets , the moons , the living organisms , and everything , The universe...
The solar system The galaxy that our solar system belongs to is known as “The way of chopped hay galaxy” or “The Milky Way galaxy” It takes an oval shape with coiled spiral arms...
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