Premiere: February 6, 1998
Episodes: 43
First Episode: “From Out of No Where, Part 1″
Sentai: Denji Sentai Megaranger
Producer: Saban
End of “Zordon Era”

“After being defeated by Divatox, the Turbo Rangers leave for space in search of their old mentor, Zordon. They come across the new Red Ranger, Andros, who initially doesn’t trust them, but after they help him in battle and help save his Astro Megaship, he awards them all new Astro Morphers, allowing them to transform into new Space Rangers. With the aid of new allies and old, such as the Silver Space Ranger, Zhane, and the Phantom Ranger, they face the monstrous Dark Specter, his herald of evil, Astronema, Astronema’s loyal general and adopted father Ecliptor, and the homicidal Psycho Rangers.For the bulk of the series, the plot involves the Space Rangers trying to find Zordon, who’s being prepared for death at the hands of Dark Specter so that the monster could absorb his powers into his own. To keep the Rangers from doing this, Astronema and Ecliptor launch attacks on Earth to keep the Rangers busy saving the planet instead of traveling to alien worlds. The arrival of the Psycho Rangers came on the heels of Andros discovering the truth about Astronema, that she was Karone, his sister. It takes time for her to come to grips with this, but she proves to the Rangers who she really is by turning against Dark Specter and re-joining her brother. The remaining Rangers realize they were wrong about her and accept her. This does not last, as the arrival of the sadistic Darkonda results in Astronema being re-brainwashed and Ecliptor being defiled when Darkonda (who has multiple lives) forcibly gives Ecliptor cybernetic implants to remove any trace of good within him. This culminates in the eight episode “Psycho Rangers” saga when Astronema releases 5 evil, insane cybernetic Rangers on Earth to hunt down and kill the Space Rangers.In the final two parter of the series “Countdown to Destruction”, everything comes full-circle when Dark Specter attacks the Earth and all remaining strongholds of good in the universe while absorbing Zordon’s life into his own at long last. The Space Rangers, the Alien Rangers, the Phantom Ranger, the Blue Senturion, the Gold Zeo Ranger, and the KO-35 rebels fight hard but they are outnumbered and outgunned. The Space Rangers, having lost two out of four Megazords, fight hard to defend Earth, but even with weapons such as the Battlizer, they are overwhelmed and forced to regroup. Darkonda decides he’s done with being an underling and destroys Dark Specter with a weapon meant for Earth, but he is killed as well. Astronema is now the “Queen of Evil” now that Dark Specter is gone much to Divatox’s chagrin, and Andros, in a last-ditch effort, goes to the Dark Fortress to try to turn her back to good.As the five remaining Space Rangers fight on Earth, Andros finds Zordon on the Fortress, no longer in danger of losing his power. Zordon tells Andros to shatter his energy tube, allowing his energy to wipe out the forces of evil (those allied with Dark Specter) and he would perish in the process. Before Andros can do so, Astronema attacks him, and Andros is unable to hurt her, and gets beaten badly in the process. She is about to kill her own brother, but Andros deflects her fire, back at her, killing her.

Ecliptor comes in and sees what happened, and his caring for Astronema returns. The two of them fight, with Andros winning, but then the unthinkable happens. Andros had no choice but to detonate the tube containing Zordon, which Andros did not want to do. Andros shatters the tube, allowing Zordon’s essence to expand throughout the universe. All of the known villains in the Power Rangers universe are obliterated, almost. Lord Zedd, Rita Repulsa, and Divatox are changed into human form, no longer evil.

The Dark Fortress touches down on Earth, and Andros, with his sister’s lifeless body in his arms, emerges. As he cries for her, she comes back to life. The Rangers are overjoyed and evil has been defeated.”

-Taken from: http://powerrangers.wikia.com/wiki/In_Space