Scientists accidentally made Pac-man ghosts out of DNA Origami

A group of scientists at Harvard's Wyss Institute for Biologically Inspired Engineering recently conducted an experiment in which they trained strands of DNA to assemble together Voltron-style to create intricate living structures based on certain instructions.

I don't entirely understand what this means, but here's how they explained it in an upcoming scientific paper from the journal of Biology:

Using a library of ~2000 strands [of DNA origami] that can be combinatorially assembled to yield any of ~1e48 distinct DNA origami slats, we realize five-gigadalton structures composed of >1000 uniquely addressable slats, and periodic structures incorporating >10,000 slats.