Yes it is true power rangers is still going on to this very day. Here's guide/list of every variation that has been produced.
-Mighty Morphin' Power Rangers: Season 1 (93-94)
An interdimensional being named Zordon chooses five teenagers with attitude to morph into powerful warriors drawn from the spirit of dinosaurs, protecting the world from the forces of space witch Rita Repulsa with the use of their giant transforming robots, known as Zords.
-Mighty Morphin' Power Rangers: Season 2 (94-95)
When Rita's boss Lord Zedd takes over, the now-six Rangers gain new Thunder-powered Zords.
-Mighty Morphin' Power Rangers: Season 3 (95-96).
Rita's brother Rito Revolto destroys the Thunderzords, leading the six teens to seek out new ninja-spirit power and Zords from the ancient sage Ninjor.
(includes the mini-series Mighty Morphin' Alien Rangers, where the Ranger teens are turned into children, leaving a new team from the waterworld of Aquitar to assist in fending off the forces of Rita & Rito's father, Master Vile).
-Power Rangers Zeo (1996)
Now with a wholly new and more powerful source in the ancient Zeo Crystal, the five teens face the robotic menace of the Machine Empire.
-Power Rangers Turbo (1997)
Evil Space Pirate Divatox seeks revenge against the five teens, who're now powered by the swiftness of Turbo.
-Power Rangers In Space (1998)
Four former Turbo teens meet up with a human from another planet, teaming up to scour the universe in an attempt to save Zordon from the galactic conqueror Dark Specter and his chosen heir, Astronema.
-Power Rangers Lost Galaxy (1999)
Five young adults, part of the space colony of Terra Venture, find their destiny in another galaxy on their voyage to a new world, while taking on an army of evil aliens.
-Power Rangers Lightspeed Rescue (2000)
A secret government agency gives five young adults the power to rescue Mariner Bay from demons bent on reclaiming their homeland.
-Power Rangers Time Force (2001)
Four police officers come back in time from the year 3000, and gain a member from modern day, while chasing the evil mutant Ransik and his criminal gang.
-Power Rangers Wild Force (2002)
Five young adults use the power of Wildzords to protect the Earth from Master Org and his pollutionous followers.
-Power Rangers Ninja Storm (2003)
Three teen ninjas in training protect Blue Bay Harbor from Lothor and his evil space ninjas.
-Power Rangers DinoThunder (2004)
Three high-schoolers and their teacher, the legendary Tommy Oliver, use the power of dinosaurs to combat Mesogog's forces.
-Power Rangers S.P.D. (2005)
Fifteen years in the future, a group of three cadets from the Ranger Academy of the Space Patrol Delta force, are joined by two rookies, against an invading alien army.