Development in astronomy

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Which of the following matches is correct?

	Astronomer	Discovery
(A)	Ptolemy	The Earth orbits on its own axis and orbits
(B)	Copernicus	The Earth is the centre of the universe
(C)	Aristotle	The Earth is spherical shape and not horizontal

Difficulty Level: Medium

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Following is information about a model created by a famous astronomer:

Which of the following model related to this information?

Difficulty Level: Medium

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Nicolaus Copernicus is the first person to realise that the Sun is the centre of the Solar system.

True or false?

Difficulty Level: Hard

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Following discovery is found by a famous astronomer:

Which of the following astronomer that discover this?

Difficulty Level: Medium

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What is the similarity between the Solar system models built by Ptolemy and Copernicus?

Difficulty Level: Medium