Final answer:
Kepler's first law describes planets' elliptical orbits with the Sun at a focus, Mars' orbit follows this law.
Explanation:
Kepler's first law states that planets move in elliptical orbits with the Sun at one of the foci. This means that the Sun is located at one of the foci of the elliptical orbit of Mars.
Learn more about Elliptical Orbits here:
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