Enlarge / Four kerosene-fueled Reaver engines power Firefly's Alpha rocket off the pad at Vandenberg Space Force Base, California. (credit: Firefly Aerospace) Welcome to Edition 7.01 of the Rocket Report! We're compiling this week's report a day later than usual due to the Independence Day holiday. Ars is beginning its seventh year publishing this weekly roundup of rocket news, and there's a lot of it this week despite the holiday here in the United States.