Question

keplers first law established that: (1 point) planets move in perfect circular orbits around earth planet speed is constant throughout their orbits planets move in elliptical orbits with the sun at one focus

Explanation:

Kepler's First Law states that the orbit of a planet around the Sun is an ellipse with the Sun at one of the two foci. It disproved the earlier - held view of circular orbits. The other options are incorrect as planets do not move in circular orbits around Earth (Copernicus proposed heliocentrism and Kepler's laws further refined it), and planet speed is not constant throughout their orbits (Kepler's Second Law addresses this).

Answer:

C. Planets move in elliptical orbits with the sun at one focus