ULA successfully launched satellites for Amazon's Project Kuiper. ULA posted on X: "GEM 63 solid rocket booster burnout and jettison is confirmed for the Atlas V 551, having consumed a half-million pounds (227,000 kg) of propellant to augment the initial liftoff thrust. The launch vehicle continues towards orbit on the power of its main engine and will more than triple its speed in the two minutes remaining in first stage flight."

See Full Page