Atlas V launches 29 Amazon Kuiper (Amazon Leo) satellites — heaviest Atlas V payload, ULA Kuiper total 139
On April 4 ULA's Atlas V placed 29 Amazon Kuiper (Amazon Leo) broadband satellites into orbit, marking the largest and heaviest payload ever flown on an Atlas V and bringing ULA's total Kuiper launches to 139. The flight used one of the launcher’s remaining Atlas V boosters.