Twenty thousand years ago, mankind first solved the problem of utilizing stellar energy, and a few centuries later, interstellar travel became possible.
A ship made to use stellar energies would have safeties preventing such an overload.
Clearly whatever did this was extremely hot, and given the ship's power source, stellar energy makes sense.
We've known from the first they required stellar energies to breach space that way.
He had noted that it used stellar energy for fuel, of course, but had suggested a more passive approach.
We learned efficient use of stellar energy because they blacked out this planet.
His powers come from the control of "stellar energy" which grants him the ability to fly and shoot energy blasts, along with various other gifts.
This conflict was only resolved in the 1930s when nuclear fusion was identified as the source of stellar energy.
First, the source of stellar energy is nuclear.
We save that stellar energy and turn it to our purposes.