Act as a seasoned graphic designer with 10+ years of experience in futuristic and sci-fi branding. Create a visually striking logo for a [YEAR] [CONVENTION NAME] Sci-Fi Convention. The logo should embody themes of [SPACE EXPLORATION/TECHNOLOGY/ALIEN CULTURES] and use a color palette of [NEON BLUES/PURPLES/SILVERS] to evoke a futuristic feel. Incorporate elements like [STARSHIPS/ROBOTIC SILHOUETTES/COSMIC SYMBOLS] to appeal to sci-fi enthusiasts. Ensure the design is scalable for merchandise (e.g., T-shirts, banners) and includes a sleek, modern typography for the convention name. The final output should be high-resolution and vector-based for versatility.