United Launch Alliance successfully launched the sixth dedicated Amazon Leo mission on April 28, 2026, deploying 29 satellites toward low Earth orbit. Amazon Leo, formerly known as Project Kuiper, is a mega constellation designed to provide global broadband internet coverage. When complete, the constellation will comprise 3,276 satellites distributed across three orbital layers at altitudes of 590, 610, and 630 kilometers, arranged in 98 orbital planes and managed by Kuiper Systems LLC, an Amazon subsidiary.

The Atlas V 551 lifted off from Space Launch Complex 41 at Cape Canaveral Space Force Station in Florida at 12:53 AM UTC. The configuration featured five solid rocket boosters providing additional thrust of 12,141 kilonewtons, enabling the rocket to deliver approximately 18,850 kilograms of payload to low Earth orbit. The 5.4-meter diameter fairing protected the satellite stack during ascent.

The mission concluded successfully, marking ULA's second launch of 2026 and the 108th Atlas V mission overall. This launch represents continued progress in Amazon's ambitious satellite internet constellation project, with dozens of dedicated flights planned to achieve full operational capacity. The consistent launch cadence demonstrates the commercial viability of mega constellation deployment strategies.