On the surface of a distant alien planet, two astronauts in sleek, futuristic suits walk side by side. One of them is holding a device that projects holographic images and data into the air, casting a faint glow onto the ground. Beside them towers an enigmatic alien structure, its design intricate yet echoing a lost civilization's grandeur. Leading up to the entrance are distinct footprints, etched into the dusty terrain as if beckoning the explorers. The scene is captured in a concept art style, a digital painting characterized by its futuristic realism. The background remains flat, with minimal details, allowing the focus to remain on the explorers and the building, while the colors are muted and low in saturation, reminiscent of Enki Bilal's signature style.