Keplers second law: An imaginary line joining a planet and the sun sweeps out an equal area of space in equal amounts of time. So this shows that the earth would move faster if it was near the sun. Why? I have read that an abject will move faster if the mass has become smaller. If mass has increased it will move slower thus angular momentum would be conserved. So in this case the earth is near the sun. So its weight should increase. If weight increases it should move slowly. So how does the Earth moving faster conserve angular momentum?