France has repaired a vacuum-chamber leak in a key science instrument that will fly aboard the NASA-led InSight lander mission slated for launch to Mars early in the new year. Engineers at French space agency CNES are now testing the repair to the InSight lander’s SEIS (Seismic Experiment for Interior Structure) instrument to ensure it will maintain the degree of vacuum necessary to carry out its mission. CNES Director-General Jean-Yves Le Gall says the instrument, currently in ...

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