[minetest2048]

Breakthrough Starshot StarChip (https://en.wikipedia.org/wiki/Breakthrough_Starshot#StarChip) is the closest thing:

> StarChip is the name used by Breakthrough Initiatives for a very small, centimeter-sized, gram-scale, interstellar spacecraft envisioned for the Breakthrough Starshot program,[1][36] a proposed mission to propel a fleet of a thousand StarChips on a journey to Alpha Centauri, the nearest star system, about 4.37 light-years from Earth