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Flying Vehicles with No Moving Parts

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Microflyers based on photophoretic propulsion would enable new ways to study Earth's mesosphere (e.g. temperature, CO2 concentration, wind speed) using payloads that weigh only grams. The proposed devices can also create horizontal thrust for trajectory control in stratospheric balloons. See https://www.nasa.gov/directorates/spacetech/niac/2023/Photophoretic_Propulsion_Enabling_Mesosphere_Exploration/


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