You're correct! "Power Rangers: In Space" is indeed Season 6, and it features its own distinct theme song. The theme song for "In Space" is memorable and marks a pivotal moment in the franchise as it transitioned into a new era.
"Power Rangers Lost Galaxy," which is Season 7, has its own unique theme and style. Thank you for the clarification! If you have any more questions or need information about Power Rangers or any specific seasons, feel free to ask!