... Kepler was able to use Brahe 's data to show that planets move in ellipses around the Sun ( Kepler's First Law ), that planets move proportionally faster in their orbits when they are nearer the Sun ( Kepler's Second Law ), and that more distant planets take proportionally longer to orbit the Sun ( Kepler's Third Law ). ... Publications with keywords: people - planet - scientist - kepler . Publications with words: people - planet - scientist - kepler . ... Planets In The Sun . ...