alien codex

In 1972, NASA released the Pioneer spacecraft, the first object to leave the solar system. It held the Pioneer plaque, representing humanity as it might first be perceived by extraterrestrials. If we received an analogous artifact from an alien civilization, what would it look like?

if we had to sum up civilization in a single plaque, what would we say?

alien codex imagines a selection of such artifacts. each features text written in a unique alien tongue, inscribed on a disk [see alien tongues]. some appear to celebrate deities; some are purely geometric. others look incomplete.