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Falcon Heavy is the launch vehicle for the initial modules of the Gateway: Power and Propulsion Element (PPE) and Habitation and Logistics Outpost (HALO). To decrease complexity NASA announced in February 2021 that it is launching the first two elements on a single Falcon Heavy launch vehicle, targeting a launch date no earlier than November 2024. Before switching to a merged launch, NASA listed in April 2020 Falcon Heavy as the launch vehicle for PPE lone launch.