The continuous expansion of the cosmic space is due to the movement of galaxies apart, Planets revolve around the Sun in fixed orbits, The stability of the Earth rotation in an orbit around the...
Each galaxy in the universe has a distinctive shape, The difference in the shapes of galaxies that form the universe because each galaxy has a distinctive shape according to the harmony and order of...
The Sun occupies the centre of the solar system, the Earth is one of the eight planets revolving around it. The Earth is the planet that we live on, The ozone layer protects living...
Planets revolve around the Sun in fixed orbits due to the attraction force of the Sun to the planets. Mercury, Venus, Earth and Mars are called the inner planets because they are the nearest...
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...
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 and other bodies were...
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