United Launch Alliance has initiated the countdown for Monday's sunrise launch of the Atlas V rocket to deploy another 27 advanced broadband satellites into space for Amazon.
Kuiper 2 is the second launch of Amazon's Project Kuiper, an advanced low Earth orbit (LEO) constellation that will bring fast, reliable internet to customers and communities around the world. ULA will launch a majority of the advanced satellite constellation using eight Atlas V and 38 Vulcan rockets.

Activities are on schedule for liftoff to occur at 6:54:30 a.m. EDT (1054:30 UTC) from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida. The available launch window remains open until 7:23:30 a.m., a duration of 29 minutes.
The countdown started at exactly 11:04:30 p.m. EDT (0304:30 UTC) from the T-minus 6 hours, 20 minutes point, with two pre-planned built-in holds scheduled in the count. One 30-minute pause is reserved prior to fueling at T-minus 2 hours, the other 60-minute hold occurs prior to the terminal count at T-minus 4 minutes.
The application of power to the Atlas and Centaur stages is underway at the start of today's countdown procedures. The stages are being powered up to begin launch day testing and final preparations for fueling operations.
Our live, play-by-play updates from Atlas Launch Control will begin at 3:30 a.m. EDT (0730 UTC) as we prepare for loading cryogenic propellants into the rocket.