Breakthrough Starshot in Pictures: Laser Sail Nanocraft to See Alpha Centauri - www.space.com
http://www.space.com/32554-breakthough-starshot-interstellar-alpha-centauri-nanocraft-pictures.html
Our Glowforge will be a little short of the 100 gigawatt needed to propell a postage stamp sized probe, but that’s what modding is for, right?