What will happen to it when it de-orbits?
The Humanity Star will burn up on re-entry into the Earth’s atmosphere, leaving no trace in space or on Earth.
I'm no scientist, but isn't that against some sort of physics law...
While I'm all for innovation and these dudes are nailing it for NZ, I'm with freitasm, our atmosphere will be the new "pacific garbage patch" in 50 years.