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Abstract LabOSat (acronym for "Laboratory On a Satellite") is a type of electronic platform designed to perform experiments in harsh, remote environments. Up to now, LabOSat platforms have been used mainly for characterizing and validating custom and commercial electronic devices at Low Earth Orbits (LEO). Many of these platforms are running experiments aboard ÑuSat satellites, which are built and operated by Argentine company Satellogic. A brief description of LabOSat platforms is presented here, along with details of their validation both at LEO and at a nuclear reactor. The electrical characterization of custom non-volatile memory cells — as performed by a LabOSat platform at LEO — is also described, and the results of such experiment are compared with results obtained on Earth. The memory cells studied were TiO 2 -based and La 1/3 Ca 2/3 MnO 3 -based ReRAM devices. Highlights • LabOSat, a characterization platform, was tested under radiation environments. • Satellite payload: excellent performance at Low Earth Orbits (LEO) in a 3-year mission. • LabOSat platform was used to study ReRAM cells on board microsatellites. • Measurements on ReRAM cells at LEO are in agreement with on-Earth measurements. [ABSTRACT FROM AUTHOR]