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Space Physics

Cambridge IGCSE Physics (0625) · 6 topics

Earth, Moon & Sun

Day and Night The Earth rotates on its axis - an imaginary line running through the North and South Poles - once every approximately 24 hours . Because light…
The Solar System

Components of the Solar System The Solar System consists of the Sun and all the objects that orbit it. One star: the Sun Eight planets , in order of increasing…
Stars

The Sun as a Star The Sun is a star of medium size , one of many billions of stars that make up the Milky Way galaxy. The Sun consists mostly of hydrogen (~75%)…
Life Cycle of Stars

Life Cycle of a Star Extended Only All stars form from clouds of gas and dust in space, then evolve over millions or billions of years. The eventual fate of a…
The Universe

Structure of the Universe The Universe is everything that exists - all matter, energy, space and time - organised on a hierarchy of scales from planets, to…
Expanding Universe

Cosmic Microwave Background Radiation (CMBR) Extended Only Cosmic microwave background radiation (CMBR) is microwave radiation of a specific frequency that is…