Power Rangers in Space is the sixth season of the American children's television series Power Rangers.
As with all Power Rangers programs, Power Rangers in Space is based on one of the entries of the Super Sentai series; in this case, the source series is Denji Sentai Megaranger. However, due to miscommunication between the United States and Japan as to the contents of the Sentai series, much of the space footage is original to the American adaptation. In Space was a turning point for the Power Rangers franchise, as the season brought closure to six seasons of plot, and it ended the practice of having regular cast members act in consecutive seasons. The theme of the series bears little similarity to its Sentai counterpart and its successor, Power Rangers Lost Galaxy.
Though its initial tone was similar to that of Mighty Morphin and Power Rangers Zeo, Power Rangers in Space eventually took a darker, more emotional turn.