Planetary protection requirements help protect other planets and moons from Earth’s biological matter, but restrictions on spacecraft design, compatibility with heat and chemical treatments, and the need for lengthy verification protocols drive cost and schedule. In this work we present an alternative methodology both for detecting surface microbes and for sterilizing them using a low power, pulsed UV laser-based scanning technique that can generate spectral maps of a surface. At sufficient powers, cells can also be eradicated, thus providing both detection and sterilization capabilities. We show how this tool can be practically applied to spacecraft materials to transform current practices.
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