“Yeah, after he used his heat vision, most of every ounce…” — Krypton Report: All things Superman & DC Comics Podcast at 40:29
“Yeah, after he used his heat vision, most of every ounce of energy he had to ignite the engine. It's an engine similar to those that propel War World across space, so it would be enough to push Krypton back into a proper orbit or something. So he expends all his energy using his heat vision to activate it, and he has…”
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