Alex Power was the oldest child of Dr. James Power, a physicist who worked for the United States government on a means of producing large quantities of energies cheaply through combining matter and anti-matter.

(The subatomic particles composing anti-matter have opposite charges to those of the equivalent particles of matter itself. When matter contacts anti-matter, both are converted entirely into vast quantities of energies.)

Power Pack Uniform: Alex wears a special costume made of Unstable molecules created by the Kymellian Smartship Friday. The costume can be invisible and intangible, but will materialize on Zero-G when he wills it to do so. When activated, these costumes were called from an extra-dimensional realm "Elsewhere" to replace their normal clothing. Zero G once wore artificial wings under his arms which enable him to glide on wind currents when he uses his anti-gravity power on himself.