Watch Live - Atlas V Launches Amazon Leo (LA-06) - Commentary

Why It Matters

The launch accelerates Amazon’s global internet‑service rollout while highlighting the strategic shift away from Russian‑sourced propulsion, a factor reshaping launch provider competition and supply‑chain security.

Key Takeaways

• Atlas V launches sixth Amazon Leo batch of 29 satellites.
• Payload weighs 16.8 metric tons, Atlas V’s heaviest configuration.
• Launch marks 10th Amazon Leo flight, 92 total planned launches.
• Atlas V relies on Russian RD-180 engines, now finite supply.
• Successful launch supports Amazon’s 3,200‑satellite low‑Earth orbit broadband plan.

Summary

The live broadcast from Space Launch Complex 41 captured United Launch Alliance’s Atlas V (551 configuration) lifting off with 29 Amazon Leo satellites, marking the sixth Atlas‑based and tenth overall launch for Amazon’s low‑Earth‑orbit broadband constellation. The payload, weighing roughly 16.8 metric tons, represents the heaviest configuration the Atlas V can carry, using a five‑meter fairing, five solid rocket boosters, and a single RL10‑powered Centaur upper stage. Key data points include an 85% go‑for‑launch weather rating, a 29‑minute launch window targeting 8:52 p.m. EDT, and the fact that Amazon has contracted 92 launches across ULA, Arianespace, Blue Origin, and SpaceX to deploy a planned 3,200‑satellite network. The mission also coincides with the 100th orbital launch attempt of 2026, underscoring the high cadence of commercial space activity. During the commentary, the host highlighted the Atlas V’s reliance on the Russian‑designed RD‑180 engine, noting that the remaining supply is finite and that ULA secured all needed engines before 2021. This engine heritage, traced back to the Soviet RD‑170, is a primary driver behind ULA’s development of the new Vulcan rocket, which will replace the Atlas V. The successful lift‑off advances Amazon’s broadband ambitions, strengthens ULA’s launch record, and illustrates the transitional phase in U.S. launch capability as legacy Russian‑engine rockets are phased out in favor of domestically produced alternatives, affecting timelines and competitive dynamics in the satellite‑internet market.

Original Description

Amazon Leo, formerly known as Project Kuiper, is a mega constellation of satellites in Low Earth Orbit that will offer broadband internet access, this constellation will be managed by Kuiper Systems LLC, a subsidiary of Amazon. This constellation is planned to be composed of 3,276 satellites. The satellites are projected to be placed in 98 orbital planes in three orbital layers, one at 590 km, 610 km and 630 km altitude.

29 satellites are carried on this launch.