The boat mentioned during HL2 E2 can teleport anywhere easily and instantly. The crew set it teleport to random places so the aliens wouldn't get it. Gordon and Alyx are able to board the boat, where Judith Mossman wants to use the technology to help the resistance while Alyx wants to destroy it as Eli wished. Alyx kills Judith and rigs the boat to explode. Her and Gordon teleport to the alien homeworld on a suicide mission. Alyx is recruited by the G-man and Gordon is rescued by the Vortigaunts. The boat bomb is much too small to damage or destroy the alien planet. Gordon awakens on an Earth where much time has passed.