A planet sweeps out equal areas in equal times.
This means that:
* A planet moves faster when it is closer to the Sun and slower when it is farther away.
* The line connecting the Sun to a planet sweeps out equal areas in equal time intervals.
Think of it this way: Imagine a planet's orbit as an ellipse. If you divide the orbit into sections of equal time, the areas swept out by the planet will be equal, even though the distances traveled in each section might be different.
