Tag: ULA

ULA’s Atlas-5 rocket launches 29 Leo satellites for Amazon

5:26 pm

ULA this evening successfully placed 29 more Leo satellites into orbit for Amazon, its Atlas-5 rocket lifting off from Cape Canaveral Space Force Station in Florida.

ULA is in the process of retiring the Atlas-5 rocket. It now has only seven Atlas-5 rockets left in stock, with one reserved for Leo launches and six for Boeing’s Starliner manned capsule (though there is a good chance some if not all of the Starliner launches will be switched to other payloads). Because its Vulcan rocket, intended to replace Atlas-5, is presently grounded, the company appears to be accelerating Atlas-5 launches, with the last few launches space only about a month apart.

With this launch, Amazon now has 331 Leo satellites in orbit, out of the 1,616 it needs to launch by July to meet its FCC license requirement. It is not going to meet that requirement, because two of the five rockets it contracted for launches are presently grounded (ULA’s Vulcan and Blue Origin’s New Glenn), and only one launch is presently scheduled before July, by Arianespace’s Ariane-6. Furthermore, ULA has only one more Atlas-5 scheduled for Leo, and the ten launches Amazon had purchased from SpaceX are not scheduled. For these reasons, Amazon has asked for a time extension, which the FCC is presently considering.

As this was only the fourth launch by ULA in 2026, the leader board for the 2026 launch race remains unchanged:

63 SpaceX
30 China
8 Russia
7 Rocket Lab

For the third straight year SpaceX leads the entire world combined in total launches, 63 to 54.

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Northrop Grumman completes successful test of new nozzle for its solid-fueled boosters

9:13 am

Unexpected debris falling from rocket at about T-1:00
Nozzle failure during February 12, 2026 Vulcan launch

Northrop Grumman on April 15, 2026 successfully completed a test of a new nozzle design of a GEM solid-fueled booster, the strap-on booster whose nozzle failed on two previous ULA Vulcan rocket launches.

On April 15, the company said Northrop Grumman performed a successful static fire test of a Graphite Epoxy Motor (GEM) 63XL Solid Rocket Booster (SRB). A spokesperson told Spaceflight Now on Thursday that the test served to “demonstrate nozzle design enhancements which were already in work and an advanced propellant technology for future solid rocket motors across their portfolio.”

“The information gathered from this test, along with findings from the investigations will provide critical data to validate analytical models and support Vulcan’s return to flight,” the spokesperson said.

At the moment the Pentagon has grounded all Vulcan launches because of this nozzle issue, and has given several planned Vulcan payloads to SpaceX instead. ULA hopes to resume normal Vulcan flights using GEM boosters before the end of the year, but it also hopes to launch Vulcan sooner without the boosters. It is right now preparing a boosterless Vulcan to do a launch for Amazon, placing an as yet undetermined number of Leo satellites into orbit. It is also possible it will do the same with AST SpaceMobile’s Bluebird satellites.

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ULA launches 29 Leo satellites

8:29 am

ULA last night successfully launched another 29 Amazon Leo satellites into orbit, its Atlas-5 rocket lifting off from Cape Canaveral Space Force Station in Florida.

ULA is in the process of retiring the Atlas-5 rocket. It now has only eight Atlas-5 rockets left in stock, with two reserved for Leo launches and six for Boeing’s Starliner manned capsule (though there is a good chance some if not all of the Starliner launches will be switched to other payloads). Because its Vulcan rocket, intended to replace Atlas-5, is presently grounded, the company appears to be accelerating Atlas-5 launches, with this launch only about 24 days after the previous launch.

With this launch, Amazon now has 270 Leo satellites in orbit, out of the 1,616 it needs to launch by July to meet its FCC license requirement. Because it is not expected to meet that requirement, the company has asked for a time extension, which the FCC is presently considering.

As this was only the third launch by ULA in 2026, the leader board for the 2026 launch race remains unchanged:

50 SpaceX
23 China
8 Russia
6 Rocket Lab

For the third straight year SpaceX continues to lead the entire world combined in total launches, 50 to 43.

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Northrop Grumman lost $71 million from its bottom line because of its solid-fueled booster failures

9:00 am

In its most recent financial statement, Northrop Grumman admitted it took a $71 million charge due to nozzle failures on two of its solid-fueled boosters, dubbed GEM 63XL, during two different launches of ULA’s Vulcan rocket.

In a statement about its first-quarter financial results, the company said its Space Systems division recorded a $71 million “unfavorable adjustment” to earnings at completion on its GEM 63XL booster “associated with a launch anomaly that occurred during the first quarter.”

The GEM 63XL solid-fuel booster is used on United Launch Alliance’s Vulcan Centaur rocket. On a Feb. 12 launch, one of four boosters shed debris about 65 seconds after liftoff. The “observation,” as ULA termed it initially, did not affect the success of the USSF-87 mission, placing its payload into its planned geosynchronous orbit.

ULA later called the incident a “significant performance anomaly” with the booster that it would investigate before returning Vulcan to flight. The vehicle has not launched since then.

A similar incidence took place during an earlier Vulcan launch, with the rocket’s core stage and the remaining undamaged boosters getting the payload into the proper orbit. The continuing problem however has now grounded Vulcan, though the military is considering using it for some small payload launches, without the GEM strap-on boosters.

As a result, the Pentagon has already shifted several launches from ULA to SpaceX, costing ULA a significant amount of revenue. In addition, Vulcan’s grounding will impact the launch of Amazon’s Leo internet constellation, which had a major contract with ULA to get its Leo satellites into orbit.

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ULA launches 29 Leo satellites for Amazon

8:31 am

ULA early this morning successfully placed 29 Leo satellites for Amazon’s internet constellation, its Atlas-5 rocket lifting off from Cape Canaveral Space Force station in Florida.

This was the heaviest Atlas-5 payload so far launched by ULA, and ULA’S fifth launch for Amazon’s Leo constellation, which now has 241 satellites in orbit, out of the 1,616 it needs to launch by July to meet its FCC license requirement. Because it is not expected to meet that requirement, the company has asked for a time extension, which the FCC is presently considering.

ULA is in the process of retiring the Atlas-5 rocket. It now has only nine Atlas-5 rocket left in stock, with three reserved for Leo launches and six for Boeing’s Starliner manned capsule (though there is a good chance some if not all of the Starliner launches will be switched to other payloads).

This was also ULA’s second launch in 2026, which means the leader board for the 2026 launch race remains unchanged:

41 SpaceX
16 China
5 Rocket Lab
5 Russia

SpaceX continues to lead the entire world combined in total launches, as it did in both ’24 and ’25.

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Space Force shifts another ULA Vulcan launch to SpaceX

3:19 pm

Unexpected debris falling from rocket at about T-1:00
Nozzle failure during February 12, 2026 Vulcan launch

As expected, the Space Force has taken its next GPS satellite launch from ULA’s Vulcan rocket and given it to SpaceX’s Falcon 9.

The reason for the change is the repeated problems with the solid-fueled side boosters used on Vulcan and built by Northrop Grumman. The nozzles on two different launches failed. Though the rocket’s core stage in both cases was able compensate and get the payload into the proper orbit, the Space Force decided in late February to suspend further launches on Vulcan until ULA gets the problem fixed and proves it by launching other commercial payloads.

The Space Force however is not yet reducing the number of launches it has purchased from ULA, merely delaying them.

If all goes to plan, the satellite — the 10th and final one in the GPS III line — will lift off no earlier than late April from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida [on a Falcon 9].

Vulcan Centaur, in return, will launch USSF-70, a national security mission that had been manifested on a SpaceX Falcon Heavy. USSF-70 will fly no earlier than summer 2028, according to Space Force officials.

Nonetheless, the situation is not good for ULA. This is the third such ULA launch the Space Force has shifted to SpaceX. At some point, if ULA doesn’t get the problem fixed the military it will be forced to reduce its reliance on Vulcan.

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NASA awards ULA’s Centaur-5 upper stage for future SLS launches

4:30 pm

NASA yesterday awarded ULA the contract for providing SLS its upper stage after the Artemis-3 mission using the Centaur-5 upper stage that was developed for the company’s Vulcan rocket.

In its procurement statement, NASA said its intention is to issue a sole source contract to ULA, meaning it’s the only upper stage being considered for this new iteration of the SLS rocket. An eight-page supporting document from NASA’s Marshall Space Flight Center (MSFC) in Huntsville, Alabama, was published to document the reasoning for its decision.

Among the stated reasons are the decades-long heritage of the RL10 engine, which has matured over time; the ability of the Centaur 5 to use the interfaces available on the Mobile Launcher 1 (ML1) along with the propulsion commodities of liquid oxygen and liquid hydrogen; and the experience of ULA’s teams working with NASA’s Exploration Ground Systems (EGS) at the Kennedy Space Center and elsewhere in the country.

They also noted that with the Centaur 3 upper stage achieving certification to launch humans as part of the Commercial Crew Program, there are a lot of common features with the Centaur 5.

The decision relieves NASA from wasting more money on the Mobile Launcher-2, which has been a disaster. The contractor Bechtel has gone over budget — from $383 million to $2.7 billion — and is so behind schedule it is still unclear now whether it will be ready by 2029, a decade after the contract was awarded.

It also relieves NASA of spending more money on its own upper stage, which has been as much a disaster, from Boeing.

Instead, this deal is an example of Isaacman doing the right thing. Rather than have NASA design and build its own upper stage, he is buying the product — almost literally off-the-shelf — from a commercial rocket company. He should expand this effort, and consider other private rockets, such as Falcon Heavy, to replace SLS itself.

Now Isaacman should consider suing Bechtel for fraud and incompetence, to try to get back some of the money it wasted.

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Space Force suspends use of ULA’s Vulcan rocket

9:36 am

Space Force officials yesterday made it official, that it has suspended all further military launches using ULA’s Vulcan rocket, due to the nozzle failure in one of the rocket’s solid-fueled strap-on boosters during the last launch on February 12, 2026.

The Space Force is pressing pause on all military launches on United Launch Alliance’s Vulcan rocket as officials investigate a recent anomaly they say could take “many months” to resolve.

That means launch plans for a GPS III satellite slated to fly on the brand new rocket next month are in flux, according to Col. Eric Zarybinsky, program executive officer for assured access to space. “I’m going to look for every flexibility I have to make sure that I can deliver warfighter capability as quickly as possible,” Zarybinsky told reporters at AFA’s Air Warfare Symposium here. “I’ve got a number of tools in my toolkit to do that, but until this anomaly is all over, we will not be launching National Security Space Launch missions on Vulcan.”

Though the rocket was able to get the payload to its proper orbit, despite the problem, this was the second Vulcan launch where a strap-on booster, built by Northrop Grumman, experienced a nozzle failure. In addition, another nozzle failure had occurred during a static fire test in 2025.

Prior to the February launch the Space Force had already shifted two launches from ULA’s Vulcan to SpaceX’s Falcon 9. At the moment ULA has seven military Vulcan launches scheduled for this year. Expect a considerable number to shift to SpaceX.

Blue Origin’s New Glenn rocket might also become an option, but the company must complete two more launches before the Space Force will certify it for national security launches. Considering that company’s slow pace in doing anything, it does not appear it will be able to take advantage of this situation.

ULA meanwhile had hoped to complete 18 to 22 launches in 2026, the majority using Vulcan. This decision by the Space Force likely means the company won’t complete more than five launches this year, most of which using its soon-to-be-retired Atlas-5 rocket.

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Four launches today with mostly positive results

10:15 am

This morning saw a string of launches from China, Russia, America, and Europe, with all four appearing to get their payloads into orbit though the American launch, by ULA’s Vulcan rocket, appeared to have a problem with one of its solid-fueled boosters.

First, a Chinese pseudo-company owned entirely by a Chinese government agency successfully placed seven satellites in orbit, its Smart Dragon-3 rocket (also called Jielong-3) lifting off from a platform off the coast of northeast China. Of the satellites, the prime payload was a Pakistani Earth observation satellite.

Though this launch was from a pseudo-company, I think I can safely say that the pause in launches by China’s so-called commercial market continues. Smart Dragon-3 was built by the China Aerospace Science and Technology Corporation (CASC), which while structured as a private company is owned and controlled by several agencies of the Chinese government.

Next, Russia successfully launched a new weather satellite, its Proton rocket launching from Baikonur in Kazakhstan. This was the first Proton launch in three years, a pause partly because Russia is in the process of retiring that rocket. The lower stages crashed in a range of spots in Kazakhstan and across southern Russia, just missing China in two places.

The American company ULA then followed with its first launch in 2026, its Vulcan rocket lifting off from Cape Canaveral in Florida and carrying two military satellites designed to track other satellite operations in high geosynchronous orbit.

Unexpected debris falling from rocket at about T-1:00
Unexpected debris falling from rocket at about T-1:00

While it appears the launch was able to get the satellites into their correct orbits, the Vulcan rocket had an issue during the launch. According to ULA, one of the rocket’s four solid-fueled boosters had a problem during its flight. More details can be found here, suggesting the booster, built by Northrop Grumman, might have had a been a failure of the booster’s nozzle, similar to the same burn-through that occurred on a booster during Vulcan’s second launch in 2024, and also occurred during a Northrop Grumman static fire test in 2025.

This issue is likely going to delay further Vulcan launches, and will likely make it impossible for ULA to meet its goal of launching 16 to 18 Vulcan missions this year. It will also raise hackles within the Pentagon, which certified Vulcan for military launches in 2025. That certification will likely be questioned, and possibly even pulled.

Finally, Arianespace sent 32 Leo satellites into orbit for Amazon, its Ariane-6 rocket lifting off from French Guiana. This was the first Ariane-6 launch in its most powerful variant, using four strap-on boosters.

Amazon has now launched 212 Leo satellites. Its FCC license however requires it to have 1,616 in orbit by July. The company has requested a waiver on that requirement, and is likely to get it, since it is now demonstrating that it is serious about launching the constellation.

The 2026 launch race:

16 SpaceX
8 China
2 Rocket Lab
2 Russia
1 ULA
1 Europe (Arianespace)

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ULA’s new management predicts it will achieve 18-22 launches in 2026

10:03 am

Before Tory Bruno resigned as CEO of the United Launch Alliance (ULA) to go work for Blue Origin, he had predicted in August last year that ULA was primed to complete two launches per month for the rest of ’25 and throughout ’26.

That prediction did not happen, as the company was only able to do four launches in the last five months of 2025, and no launches so far in 2026.

Yesterday the new management of ULA insisted that Bruno’s prediction was still reasonable, and that the company will complete between 18 to 22 launches before the end of this year.

Speaking during a virtual media roundtable on Feb. 10, Gary Wentz, ULA’s vice president of Atlas and Vulcan Programs, said the company aims to launch two to four Atlas 5 missions and 16 to 18 Vulcan missions. He said the Vulcan rockets will be split between pad 41 at Cape Canaveral Space Force Station and pad 3 at Vandenberg Space Force Base. “It’s a balance. We’re working with our customers to determine specific priorities and order of missions and in the case of Space Force and NRO (National Reconnaissance Office), to determine which missions they wan to get off with higher priority,” Wentz said. “And as we finalize that over the next about six to eight months out of the mission, then we’ll assign whether or not its going to be an Atlas mission or a Vulcan mission.”

John Elbon, the interim CEO following the departure of Tory Bruno in December, said that the company has a “strong commitment” from their commercial and government customers, citing a backlog of more than 80 missions.

That backlog is mostly split between ULA’s big contract to launch Amazon’s Leo satellites and a variety of different agencies in the Pentagon. Both are desperate to get their satellites into space, and it appears ULA is struggling to figure out how to do it. In its early years (from 2007 to 2016) the company was generally able to average about one launch a month, but since then that launch rate as been less than half that. To not only return to those launch rates from a decade ago but to almost double them will be challenging, to say the least.

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First Vulcan rocket arrives at Vandenberg for launch later this year

8:53 am

ULA has now delivered parts of a Vulcan rocket to Vandenberg Space Force Base in California as it prepares for that rocket’s first launch from that spaceport later this year.

ULA’s RocketShip recently docked at the harbor on the South Base with the Vulcan rocket components stowed inside the huge cargo vessel. … Crews spent several days offloading the hardware while mindful of tides that could have delayed the delivery.

…On the first day, workers removed the Vulcan’s Centaur upper stage from the RocketShip, followed by the booster the next day. “We tried to take off the payload adapter and the interstage adapter and, unfortunately, the swells were pretty bad,” Fortson said. After pausing the unloading chores for two days, the swells cooperated so the team didn’t have to wait for the next opportunity for suitable tides a couple of weeks away.

ULA hopes to get the launch off by June 2026, but that schedule will depend on whether the launchpad conversion from the Atlas-5 rocket can be completed. It also depends on whether the payload is ready on time. It appears this launch will be one of ULA’s seven national security launches for the Pentagon, though this is not confirmed.

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Amazon buys ten more launches from SpaceX to place its Leo satellites in orbit

10:59 am

Amazon Leo logo

Hidden in Amazon’s submission last week to the FCC, requesting more time to launch its Leo internet constellation, was this tidbit:

Less than two years after the Commission granted its authorization, Amazon Leo announced the largest commercial launch procurements in history to deploy its initial constellation. It has since added to this launch capacity, and today has contracted for 102 launches across four providers: 18 launches on Arianespace’s Ariane 6, 24 launches on Blue Origin’s New Glenn, 38 launches on ULA’s Vulcan Centaur, 9 launches on ULA’s Atlas V, and 13 launches on SpaceX’s Falcon 9. [emphasis mine]

The highlighted phrases indicate the significant changes. In my initial post last week I was focused solely on whether the FCC would grant Amazon the time extension to get its constellation in orbit. At the moment it has only 180 satellites operating in orbit, and to meet its license requirement it must have 1,616 launched by July.

Thus, I didn’t look closely at these launch contract numbers. While the number of launches for Arianespace (18) and ULA (47) appears to match Amazon’s contract numbers from its original 2022 announcement, Blue Origin’s total has dropped by three launches, 27 to 24.

SpaceX in turn has gained another ten launches, on top of its original already completed 2023 three-launch contract. (In 2023, faced with a stockholder lawsuit for ignoring SpaceX’s Falcon 9, the only operational rocket among all of these at the time and by far the cheapest, Amazon’s management quickly signed SpaceX to that three-launch contract.)

The submission last week tells us that sometime recently Amazon signed SpaceX to a new contract for ten more launches. The numbers also suggest that the company took three launches away from Blue Origin’s New Glenn. Apparently, Amazon is not happy with Blue Origin’s launch pace, and signed SpaceX to help get more satellites in orbit. Without question, SpaceX will get these ten additional launches off faster than ULA, Arianespace, or Blue Origin combined. In fact, I bet it gets all ten done before the middle of this year, assuming Amazon can deliver it the satellites.

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