HELSINKI — Chinese commercial rocket firm Galactic Energy experienced its first failure Thursday with its 10th launch attempt. Airspace closure notices pointed to a launch attempt from Jiuquan Satellite Launch Center in northwestern China at around 1:00 a.m. Eastern, Sept. 21. The window passed without notification of a launch, which would typically follow within an hour of liftoff. Galactic Energy published an article confirming the loss of a Ceres-1 rocket and its payload via its WeChat social network account roughly six hours after launch. The company stated a four-stage Ceres-1 solid rocket lifted off from Jiuquan at 12:59 a.m. Eastern,...