UNIVERSITY PARK, Pa. — Sir Alexander Fleming was searching for a cure-all wonder drug when he found it — penicillin — in the discarded remains of his Petri dish experiments.

While experimenting with cathode tubes, physicist Wilhelm Röntgen discovered X-rays that could pierce through most materials, including skin.

Two researchers at Penn State are hoping their accidental discovery could join the list of some of science’s most welcome surprises that revolutionized the way we approach medicine and medical testing.

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