GENERAL KNOWLEDGE

GK

THE UNIVERSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Copernicus was the first astronomer to develop a heliocentric model of the Solar System. What is the main idea of heliocentrism?
A
An asteroid is the center of the Universe.
B
The planets move toward the center of the Universe.
C
The Sun is the center of the Solar System.
D
The Earth is the center of the Universe.
Explanation: 

Detailed explanation-1: -heliocentrism, a cosmological model in which the Sun is assumed to lie at or near a central point (e.g., of the solar system or of the universe) while the Earth and other bodies revolve around it.

Detailed explanation-2: -In a book called On the Revolutions of the Heavenly Bodies (that was published as Copernicus lay on his deathbed), Copernicus proposed that the Sun, not the Earth, was the center of the Solar System. Such a model is called a heliocentric system.

Detailed explanation-3: -One of the objections raised to the heliocentric theory was that if Earth were moving, we would all sense or feel this motion. Solid objects would be ripped from the surface, a ball dropped from a great height would not strike the ground directly below it, and so forth.

Detailed explanation-4: -This is now known as the geocentric model, while the heliocentric model puts the sun at the center. Nicolaus Copernicus proposed the heliocentric model in his work published in 1543, according to NASA Earth Observatory (opens in new tab).

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