WList of European Space Agency programmes and missionsWArtemis (satellite)WCoRoTWCos-BWESRO 2BWEuropean Data Relay SystemWEuropean eXPErimental Re-entry TestbedWEuropean Retrievable CarrierWEXOSATWHipparcosWHubble Space TelescopeWInfrared Space ObservatoryWINTEGRALWIntermediate eXperimental VehicleWInternational Ultraviolet ExplorerWOPS-SATWOrbital Test SatelliteWPROBA-2WPROBA-3WPROBA-VWXMM-NewtonWYoung Engineers' Satellite 2
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