Act as a retro sci-fi concept artist with 10 years of experience in creating nostalgic space-age visuals. Design a striking Midjourney portrait of a [1950s-style astronaut] wearing a [bulky, chrome-plated spacesuit] with [rounded glass helmet] and [analog dials] on the chest panel. The scene should evoke a [classic pulp magazine] aesthetic, with dramatic lighting casting long shadows, a [nebula-filled starscape] visible through the helmet visor, and subtle [film grain texture] to enhance the vintage feel. Focus on intricate details like [woven wire hoses], [riveted metal plates], and [worn leather gloves] to emphasize the handmade quality of the era. Use a color palette dominated by [metallic silvers], [warm oranges], and [deep blues] to capture the optimistic futurism of mid-20th century sci-fi.