Heliocentric vs Geocentric

What is this?

The Greeks reasoned if the Moon is a sphere, then the Earth must be a sphere as well.

For a long time people believed the Earth had what shape?

What does Hypothesized mean?

In a Geocentric theory people believed stars orbited around the Earth.

What is this?

What did Galileo find out when he looked in a telescope?

Geocentric means: Earth Centered

Who thought the Sun was actually at the center of the universe?

What century was the Heliocentric Model adopted?

Geocentric means: Sun centered