Originally posted by illadelph12
If the radiation Radion emits is a part of the EM spectrum (which it naturally would be unless it was mystical in nature), Galactus should have access to it. Though there isn't a Marvel equivalent to the substance, the radiation wavelength should logically be present in any universe since it's within the EM.
That's right. Since this battle takes place in a either a neutral universe or the DC universe, no matter what that particular wavelength will be present.