Absorbium

Absorbium

Strange elemental isotope that has the power to absorb energy from energy sources or matter. Absorbium is present on Earth in at least small amounts, and plays a critical role in deactivating Eterno one billion years in the past (Act No. 343, Nov 1966: "Eterno, the Immortal!") and in destroying the Sun-Eater 1,000 years in the future (Adv No. 353, Feb 1967: "The Doomed Legionnaire!").