Question

how did keplers discoveries contribute to astronomy? they supported the heliocentric model. they established the laws of planetary motion. they explained how the sun rises and sets. they made astronomy accessible to people who spoke italian.

Explanation:

Kepler established three laws of planetary motion which were crucial for understanding the motion of planets around the Sun and supported the heliocentric model. The rising and setting of the Sun is explained by Earth's rotation, not Kepler's discoveries. And his work was not about making astronomy accessible to Italian - speakers.

Answer:

They supported the heliocentric model.
They established the laws of planetary motion.