An image of the Europa Clipper vault plate, highlighted from the upper left corner casting shadows that emphasize engraved waveforms emanating from a central point symbolizing the word 'water' in multiple languages. The waveforms present as audio frequency waves. The vault plate is metal silver and the engravings are black, set against a black background.
Source: NASA/JPL-Caltech
Published: March 8, 2024

The outward-facing side of the Europa Clipper's silver vault plate is engraved with waveforms for the word 'water' in 104 languages.

The waveforms extend from a circular symbol in the middle of the
design, which represents the non-spoken word for “water” in American Sign Language.