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Drilling on Mars: What We Have Learned from the Mars Science Laboratory Powder Acquisition Drill System (PADS)

Introduction: The collection of Martian samples from a mobile robotic platform on rough terrain creates unique engineering challenges to ensure not only reliability and robustness in a highly indeterminate Martian environment, but also the cleanliness of the samples ingested by onboard instruments, such as MSL CheMin and SAM. In the Sample Acquisition/Sampling Processing and Handling System (SA/SPaH), the Powder Acquisition Drill System (PADS) is the system responsible for acquiring powdered samples from the interiors of rocks [1]. In this presentation, we will summarize what we have learned from the first five drill holes on Mars and compare the results to the prelaunch MSL testing.