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https://spaceref.com/status-report/nasa-solicitation-self-powered-extra-vehicular-activity-eva-mobility-unit-data-recorder/ NASA Solicitation: Self-powered Extra Vehicular Activity EVA Mobility Unit Data Recorder - SpaceRef Jun 16, 2011 - Space news and reference site. extra vehicular activity https://www.airandspaceforces.com/tag/extra-vehicular-activity/ extra-vehicular activity Archives | Air & Space Forces Magazine extra vehicular activity air space forces archives magazine