WASHINGTON — Australian launch vehicle startup Gilmour Space has received a license for its first orbital launch, which could take place before the end of the year. The company announced Nov. 5 that it received a launch permit from the Australian Space Agency for the first flight of its Eris small launch vehicle from a site in northern Queensland called Bowen Orbital Spaceport. The license was the final major milestone for the launch. “With this green light, we will soon attempt the first orbital test flight of an Australian-made rocket…