Space physics: solar system, stars and the universe

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Describe the Solar System, natural and artificial satellites, and explain how gravity provides the force for circular orbits
Describe the life cycle of stars of different masses: nebula, protostar, main sequence, red giant or red supergiant, white dwarf, supernova, neutron star or black hole
Explain red-shift and the cosmic microwave background radiation as evidence for the Big Bang and an expanding Universe

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