The Freezing

In times of peace many individuals are not needed, war heroes drift into the past, powered people have no purpose, and many such in similar positions fall from the needs and wants of the universe. The universe was thriving, trade and innovation boomed and wealth flowed throughout. The universe wide governing body decided wisely that the peace would not last forever and it would be wise for these almighty heroes to be preserved as many of them could not live forever
The time was peaceful on most worlds so many governments decided to freeze their heroes in order to prolong their protection.