Atlas V rocket launches 29 Amazon internet satellites, ties record for heaviest payload it's ever flown

a large white rocket launches into a dark night sky
A ULA Atlas V rocket launches 29 Amazon Leo satellites from Florida on April 27, 2026. (Image credit: ULA)

A United Launch Alliance Atlas V rocket launched 29 of Amazon's internet satellites on Monday night (April 27), tying its payload-weight record in the process.

The Atlas V lifted off from Florida's Cape Canaveral Space Force Station Monday at 8:53 p.m. EDT (0053 GMT on April 28).

ULA called Monday's mission Amazon Leo 6, because it was the sixth that the company has flown to help build out the Amazon Leo broadband constellation in LEO.

The network, a rival to SpaceX's Starlink internet megaconstellation, will eventually consist of more than 3,200 satellites, if all goes to plan.

It will take more than 80 launches by a variety of rockets to finish assembling Amazon Leo, which used to be known as Project Kuiper. Just 10 of these liftoffs have occurred to date. The Atlas V has now flown six of them, SpaceX's Falcon 9 has launched three and Arianespace's Ariane 6 rocket has launched one.

The Ariane 6's tally will increase soon, however; it's scheduled to launch an Amazon Leo mission from French Guiana early on Wednesday morning (April 29).

The first four Atlas V Amazon Leo missions sent 27 of the broadband satellites skyward. Amazon Leo 5, which launched on April 4, boosted that number to 29 and set a new record for the heaviest payload ever flown by an Atlas V in the process — 18 tons.

Amazon Leo 6 tied that mark, as it also launched 29 Amazon Leo satellites to the final frontier.

Editor's note: This story was updated at 10:30 p.m. ET on April 27 with news of successful launch and satellite deployment.

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Mike Wall
Spaceflight and Tech Editor

Michael Wall is the Spaceflight and Tech Editor for Space.com and joined the team in 2010. He primarily covers human and robotic spaceflight, military space, and exoplanets, but has been known to dabble in the space art beat. His book about the search for alien life, "Out There," was published on Nov. 13, 2018. Before becoming a science writer, Michael worked as a herpetologist and wildlife biologist. He has a Ph.D. in evolutionary biology from the University of Sydney, Australia, a bachelor's degree from the University of Arizona, and a graduate certificate in science writing from the University of California, Santa Cruz. To find out what his latest project is, you can follow Michael on Twitter.