CDN University Demonstrates NanoSat Formation Flying First

I know that this is not a "rocket" as such, but that doesn't keep it form being rocket-science.

According to the SFL, the CanX-4 and CanX-5 NanoSats in October “used their on-board propulsion, GPS-based relative navigation, and inter-satellite radios to execute a series of precise, controlled, autonomous formations, ranging from 1 km range down to 50 m separation. In each case, more than 10 orbits were accomplished with sub-meter formation control and centimeter-level relative navigation.”