Modified Laser Mass Spectrometer Mimics Mars MOMA for Enhanced Testing

This research details the application of a modified commercial laser mass spectrometer as a terrestrial analog for the Mars Organic Molecule Analyzer (MOMA), slated to fly on the ESA/NASA Rosalind Franklin rover in 2028. The modifications bridge the gap between existing lab equipment and the specific operating parameters of MOMA, enabling more effective testing and validation. Key to this is the instrument's ability to detect organic standards within mineral matrices, coupled with MS/MS for structural identification, even in complex mixtures. Validation against existing LDI-MS prototypes using samples from the Atacama Desert, a Mars analog site, further strengthens the instrument's credibility. The study also highlights the instrument's capacity to characterize both mineralogical and organic signals in synthetic Mars analog mixes. This modified benchtop instrument will serve as a platform for collaborative research, optimizing LDI parameters and generating pre-flight reference data. The development of robust analog instruments is crucial for maximizing the scientific return of missions like the Rosalind Franklin rover, ensuring that MOMA is well-prepared to analyze Martian samples and search for potential biosignatures. The ability to rapidly test samples and refine analytical techniques will be invaluable in the search for evidence of past or present life on Mars. This research contributes to the broader effort of preparing for in-situ resource utilization (ISRU) and understanding the potential for life beyond Earth. The work underscores the importance of ground-based research in supporting and enhancing space exploration missions.

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