the astronaut, a silver astronaut, floats weightlessly in space, his hands tracing their weight. The galaxy around him is a swirling vortex of colors and textures, spanning thousands of kilometers. The astronaut's helmet is made of a silver material, and he's meticulously studying the stars and galaxies surrounding them like a series of intricate calculations. The scene is set against a backdrop of endless expanses of space, with stars twinkling and galaxies twinkling in the distance.