The Best Seasons of Defying Gravity

Every season of Defying Gravity ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Defying Gravity!

In the very near future, a team of eight astronauts embarking on a six-year journey to explore Venus and other planets in the solar system, find their lives and destinies intertwined and carefully directed, not only by Mission Control officials on Earth, but also by an unseen force which is much closer and far more powerful.