r/wallpapers

Less compressed version

Full res upscale

Flickr source scan from here

Upscaled via Topaz Gigapixel, composited different upscaling and denoising results in Photoshop.

Bonus blog post on its appearance in the book "There's No Space Like Home".

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Upscales/high res collection of Syd Mead.

Original gamma/color grade versions here and wallpaper versions here.

Non-upscaled original source scans here.

Syd Mead's official site