ULA Atlas 5 launch puts Amazon’s 180th broadband satellite in low Earth orbit

United Launch Alliance aced its final launch of 2025, a predawn flight of an Atlas 5 rocket carrying 27 satellites for Amazon’s recently re-branded Leo broadband internet service. The on time liftoff from Space Launch Complex 41 at Cape Canaveral Space Force Station happened at 3:28 a.m. EST (0828 UTC), as the RD-180 engine on the booster roared to lift alongside five solid rocket boosters. The rocket flew on a north-easterly trajectory upon leaving the launch pad. The mission, referred to by ULA as Amazon Leo 4 and dubbed Leo Atlas 4 (LA-04) by Amazon, was ULA’s fourth launch for the venture, previously known as Project Kuiper. More

(Source: SpaceFlight Now - Dec 17)