The sixth series also marked the final regular appearances of Tracy Lynn Cruz, Patricia Ja Lee, Roger Velasco, and Selwyn Ward, as well as the conclusion of Zordon's story that has been significant in the previous six seasons.

[3] Meanwhile, four of the former Turbo Rangers (T.J. Johnson, Carlos Vallerte, Ashley Hammond and Cassie Chan) and Alpha 6 are traveling in a NASADA space shuttle with the intent to save Zordon.

Though initially suspicious and dismissive of the four former Turbo Rangers, Andros realizes he'll need their help to save Zordon and gives them each an Astro Morpher.

Astronema, now completely cold and calculating, now not only seeks to destroy the Space Rangers, but also Dark Specter and usurp his ruling power.

The five monstrous and borderline-insane villains possess great power, which secretly comes from Dark Specter, nearly draining him of his life force.

The series culminates in the two-part finale, "Countdown to Destruction", where Zordon is nearly completely drained and Dark Specter orders the villains under his command to attack the entire universe.

Darkonda kills Dark Specter, who returns the favor before his own death, leaving Astronema in command as the Queen of Evil.

While Andros boards the Dark Fortress to appeal to his sister, the remaining five Space Rangers engage in one last fight for Earth and are joined by the citizens of Angel Grove, with Bulk and Skull leading the charge.

The many monsters are subsequently turned to dust by the energy wave (including Ecliptor), while Lord Zedd, Rita Repulsa, Divatox and Astronema are changed into normal, non-evil humans.

The Rangers were going to have a base in Earth orbit called the new Power Dome: it was to be realized by "a giant pyramid made of silky material... the walls of silk will change constantly with special effects lights creating the different moods".

Studios gave the Psycho Rangers a more-detailed origin where Astronema killed some individuals for raw material that she used to create them with help from Dark Spector.

Astronema uses her powers to make the Teenage Mutant Ninja Turtles evil and has them con the Rangers into letting them on the Megaship so that they can take it over for her.

When a monster attacks a powerless Carlos, Adam must risk his life to morph into the Mighty Morphin Black Ranger to save him.

Factory announced that it had reached an exclusive distribution deal with Saban Brands for shows such as Power Rangers and Big Bad Beetleborgs.

Power Rangers in Space was released on DVD in August 2012, as part of a Time-Life exclusive boxed set containing seasons 1–7.

In 2018, the In Space Rangers appeared in "Shattered Grid", a crossover event between teams from all eras commemorating the 25th anniversary of the original television series.