Curiosity took pretty nice pictures that you can very easily turn into wallpapers. https://mars.nasa.gov/resources/curiositys-1-8-billion-pixel-panorama/?site=

Curiosity took pretty nice pictures that you can very easily turn into wallpapers. https://mars.nasa.gov/resources/curiositys-1-8-billion-pixel-panorama/?site=msl https://mars.nasa.gov/resources/curiositys-1-8-billion-pixel... Take the second one from that page, for instance, zoom in, and just take a screenshot and use it as your wallpaper.