The Ninja Nexus Prism was first created by the Morphin Masters and crash-landed onto Earth, centuries ago.

It contains the six legendary Ninja Power Stars and originally held the Ninja Nexus Star. It is also a forge for new Power Stars. Prior to its crash land on Earth, the Ninja Nexus Prism was covered with Ninja Steel, an unique metal alloy that can be used to make new Power Stars. It is shown to be an actual living artifact that possesses both consciousness (able to retain memories and have its "mind" read by telepaths) and awareness (fleeing when it senses danger).

After the final battle against Galvanax, the Ninja Nexus Prism died, causing all the Power Stars in the Rangers' possession to turn into dust. However, Madame Odius later revived the Prism in an attempt to turn it evil and make Power Stars for her, however, the Rangers were able to stop her and with the newly-revived Prism, they got their Power Stars back to take on Odius's threats.