NASA/Don Richey Preparations are underway for a new, small spacecraft technology demonstration that will test cost-efficient swarm capabilities. The PY4 mission’s four CubeSats are slated to launch Monday March 4, 2:05 p.m. PST to low Earth orbit aboard SpaceX’s Transporter-10 mission from Vandenberg Space Force Base in California. It uses a unique avionics platform called PyCubed that integrates power, computing, communications, attitude determination,