How did the term "planet" originate with the Greeks

The Greek term asters planetai mean "wanderingstars" and described the tiny lights that moved across the sky moredramatically than stars when compared over weeks and months. These wanderingstars, back then, amounted to Mercury, Venus, Mars, Jupiter and Saturn

Explanation:

the core of the sun is so hot and there is so much pressure, nuclear fusion takes place, hydrogen is changed to helium. nuclear fusion creates heat and photons. when the heat reaches the earth it warms the molecules of the atmosphere, and they warm other molecules and so on.

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