Face in Space follows a long tradition of spacecraft carrying personal touches out of Earth’s gravity well. Since 1997, shuttle missions have carried elementary school students’ signatures as part of an outreach project called Student Signatures in Space. The Cassini spacecraft brought a disk of signatures into orbit around Saturn. The Phoenix Mars Lander took a DVD to Mars’ north pole. The Lunar Reconnaissance Orbiter took a microchip to the moon. And the exoplanet-hunting Kepler telescope took a DVD full of names and messages to ET into orbit.
The Voyager I spacecraft’s cargo was even more intimate: It carried a phonograph record containing recordings of a kiss, a mother’s first words to her child and Carl Sagan’s wife Ann Druyan’s brainwaves, among other Earthly sounds.
Face in Space | Wired Science piece