The new Mi 9 Xiaomi flagship phone has a sand dune wallpaper that completely copies Apple’s macOS Mojave design, right down to the shifting colors in sync with the time of day.

This cool space wallpaper is a radar image from the Cassini orbiter showing dark streaks carved into dunes on Saturn’s moon Titan. While sand on Earth is composed of silicates, the ‘sand’ of ...

This enhanced-color space wallpaper shows sand dunes trapped in an impact crater in Noachis Terra, Mars.