What is an ellipse? Who came up with this theory ? What did Galileo Do ? What did he see?

What is the Heliocentric theory ? Who can Up with the Theory ?

An ellipse is a circular rotation around something

Apollonius came up with this theory

Galileo sunspots supported the idea that the Sun - not the Earth - was the center of the Universe, as was commonly believed at the time.

Galileo saw/discovered four of Jupiter's moons

Heliocentric theory is the astronomical model in which the Earth and planets revolve around the Sun at the center of the univese

Copernicus

Explanation:

the confederates at fort sumter.

- "the most famous structure by far at saqqara is djoser's step pyramid. dating from the 3rd dynasty (2667—2448 bc), it was the first all-stone complex ever built on earth."

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