A ULA Atlas V-551 rocket stands showing the Amazon Leo logo on its fairing on Dec. 14, 2025. (Image credit: Manuel Mazzanti/NurPhoto via Getty Images) A new batch of satellites for Amazon's internet constellation will launch to orbit tonight (May 29), and you can watch it live. A United Launch Alliance (ULA) Atlas V 551 rocket rolled out to its launch pad yesterday (May 28), ahead of today's mission to deliver 29 Amazon Leo spacecraft to low Earth orbit (LEO). The rocket is scheduled to lift off from Launch Complex-41 at Cape Canaveral Space Force Station in Florida, during a 29-minute window that opens at 7:33 p.m. EDT (2333 GMT). It will be the seventh Amazon Leo mission to fly on an Atlas V, and will tie, for the second time, the rocket's record for heaviest payload launched to orbit — about 18 tons. Overall, this will be the 12th Amazon Leo mission, and it will add the 29 satellites to Amazon's existing network of 300 already in orbit. Amazon aims to raise that number more than tenfold.…