United Launch Alliance has initiated the countdown for launch of the Atlas V rocket to deploy 29 advanced broadband satellites into space for Amazon Leo. Our overnight launch opportunity opens at exactly a.m. EDT (0545:30 UTC) for liftoff from Cape Canaveral Space Force Station in Florida.The launch countdown is a tightly scripted sequence of procedures and steps over the next seven hours that will complete pre-launch testing, fill the rocket with propellants and put systems into flight mode.Our

United Launch Alliance has successfully completed today's launch of the Amazon Leo 5 mission by the Atlas V rocket! All 29 advanced broadband satellites have been released into low Earth orbit, marking the largest payload ever launched by the venerable rocket family.Atlas V has delivered a total of 139 Amazon spacecraft into orbit through six successful flights -- Protoflight and five launches for the Leo constellation.Next up, Leo 6 with another 29 satellites, is planned for April 27.https://t.

Atlas 5 launch recap