
Portal Space Systems opens its doors for a sneak preview of solar propulsion system
VIPs cut the ribbon at Portal Space Systems’ HQ in Bothell, Wash. From left: U.S. Rep. Suzan DelBene; Portal co-founders Prashaanth Ravindran, Jeff Thornburg and Ian Vorbach; and Bothell Mayor Mason Thompson. (GeekWire Photo / Alan Boyle) BOTHELL, Wash …