Northrop

A spacecraft equipped with two robotic arms, developed by Northrop Grumman, is set to be launched today. The company plans to establish an entire fleet of these Mission Robotic Vehicles (MRVs), ostensibly to offer a commercial service to refuel and repair satellites in orbit. However, the question has been raised about whether the MRV could also be used to attack enemy assets in space. The U.S. Space Force has said publicly that it is pursuing offensive space-based capabilities, primarily to help protect friendly satellites from growing threats.

Whether the MRV, or a derivative thereof, could be employed in an offensive role explicitly came up during a quarterly Northrop Grumman earnings call this morning. The company does not appear to have ruled out the possibility.

“As part of our satellite servicing portfolio, we’ve developed the first commercial robotic spacecraft capable of repairing, relocating, and servicing satellites in geosynchronous orbit via two robotic arms,” Northrop Grumman CEO Kathy Warden had highlighted in her introductory remarks at the start of the call. “It can also install life extension jetpacks onto other satellites for government or commercial customers, prolonging their useful life for up to eight years.”

Next Generation of Satellite Servicing Products: Mission Robotic Vehicle and Mission Extension Pods

“The spacecraft is known as the Mission Robotic Vehicle, or MRV, and our first MRV is scheduled to launch later today, weather permitting,” she added.

“You probably can’t provide quantitative terms here, but just from a qualitative perspective, what’s the potential market for an offensive version of that spacecraft that could be used to disable adversary satellites?” Scott Mikus, Director for Aerospace, Defense and Space Research at Melius Research, asked later on during the call.

“So I appreciate the question. I will leave it up to the U.S. government to decide how that capability might fulfill mission objectives that they have in that regard,” CEO Warden said in response. “But certainly, it’s our objective to offer our clients options for technology deployment, and for them to determine policy for when and how they might deploy that technology.”

To take a step back, if all goes to plan, a SpaceX Falcon 9 space launch rocket carrying the MRV will blast off from Cape Canaveral sometime in a four-hour window starting at 5:15 PM ET today. The rocket will also carry three Mission Extension Pods (MEPs), which are the “life extension jetpacks” that Warden mentioned.

As noted, the MRV has two robotic arms that allow it to place the MEPs onto other satellites in orbit, as well as perform other tasks. The arms are part of what is formally called the Robotic Servicing of Geosynchronous Satellites (RSGS) payload. The RSGS system was developed through a program led by the U.S. Defense Advanced Research Projects Agency (DARPA), in cooperation with the U.S. Naval Research Laboratory (NRL). It is worth noting here that RSGS is the product of U.S. government work in this vein stretching back decades. There have also been other similar developments elsewhere globally, including in China and Russia, as we will come back to later on.

Robotic Servicing of Geosynchronous Satellites (RSGS) Concept Video

The MRV’s upcoming mission will include rendezvousing with satellites belonging to Australian firm Optus and SES in Luxembourg and attaching MEPs to them, according to a report from Spaceflight Now. Both of these companies are commercial telecommunications providers.

Northrop Grumman’s fact sheet on the MRV says the spacecraft is capable of performing an array of on-orbit inspection and servicing missions beyond refueling via the MEPs. The robotic vehicle can also be used to ‘tow’ satellites from one position to another and help clear debris. All of this requires the ability to maneuver very closely with other target objects in space. This, in turn, brings us to the question of the MRV potentially offering an offensive anti-satellite capability.

For years, TWZ has highlighted how robotic arms on spacecraft are an inherently dual-use capability that could be used to launch attacks in space. In general, arms like this could be used to damage or destroy key systems on adversary satellites, such as optics or solar panels, or to just pull them out of orbit. In the latter case, the target could be towed into a degrading orbit where, if control could not be reestablished, it would re-enter the Earth’s atmosphere and be destroyed.

The U.S. military itself has repeatedly pointed to adversary satellites with robotic arms as one of many potential threats to its own space-based capabilities.

“We’re basically responding to a warfighting domain where our adversaries have already put interceptors in space, and we want to make sure that we rebalance that in terms of deterrence,” Chief of Space Operations Gen. Chance Saltzman, the Space Force’s top officer, said at a roundtable at the Air & Space Forces Association’s (AFA) annual Warfare Symposium in February. Saltzman was responding to a direct question from our Howard Altman.

“Interceptors by definition refer to a handful of well-acknowledged capabilities that other countries have, like ground and air-launched anti-satellite missiles or capabilities like the SJ-21 [the Chinese Shi Jian 21 satellite], which has a grappling arm,” a Space Force spokesperson also told TWZ at that time when asked for clarification about the “interceptors in space” Saltzman had mentioned.

Long March-3B launches Shijian-21

‘Inspector satellites’ that could have dual-use purposes have been a hot topic of discussion for years now, with Russian developments drawing particular attention. A ‘killer satellite’ with close maneuvering capability could employ a variety of means beyond robotic arms to try to disable, damage, or even destroy a target in space. This could include electronic warfare jammers, directed energy weapons, chemical sprays, and small projectiles. The space-based inspector could itself be used as a kinetic kill vehicle and deliberately smashed into the target.

Close inspection of other satellites in space also provides opportunities to gather intelligence about their capabilities and monitor their activities. U.S. satellites, as well as those belonging to Russia and other countries, have been observed doing just this over the years. Some commercial satellite imagery firms are even now offering space-based situational awareness as a service.

As underscored by DARPA and NRL’s work on RSGS payload, the U.S. military already has a clear interest in the MRV spacecraft’s core capabilities. On-orbit refueling, in particular, is seen as offering vital freedom of maneuver to help safeguard friendly satellites from attack. Right now, ‘running and hiding’ is the most immediate option available for responding to threats, but doing so requires satellites to burn precision fuel, eating into their operational lifespan.

The Space Force also has an entire unit dedicated to a still-evolving “orbital warfare” mission set that has defensive and offensive elements.

“Protecting and defending satellites can’t simply be done by protect and defend. You can’t run away from a bully forever. Sometimes you got to turn around and punch,” Lt. Gen. Gregory Gagnon, head of U.S. Space Force Combat Forces Command (CFC), said at another roundtable at the AFA Warfare Symposium in February. “So protect and defend, although necessary, is insufficient to deliver space control. We also need, as part of our joint force, the ability to attack.”

Gagnon cited China’s massively expanding space-based capabilities as a key driver behind this viewpoint. He’s also mentioned plans for Space Delta 9, the formation tasked with orbital warfare, to begin exploring new offensive and defensive tactics using an experimental satellite.

“This prototype will be operated by my Orbital Warfare Delta. This is the only Orbital Warfare Delta in the United States government. Their job will be working on their maneuvers, which is one of the seven joint functions of warfighting, so that they can deliver offensive and defensive capabilities that are precise and not imprecise,” he explained. “They’re going to work on driving that spacecraft in a way that we couldn’t drive spacecraft before.”

The scale and scope of demands to protect U.S. satellites in orbit is only set to grow significantly in the coming years, fueled further now by the Golden Dome initiative. Golden Dome is a multi-faceted effort aimed at delivering a hugely expanded national missile defense architecture. A core element of the plan as it stands now is space-based anti-missile interceptors, which will be supported by large, distributed sensor and communications satellite constellations. In a report released in May, the Congressional Budget Office (CBO) assessed that 7,800 interceptors in orbit could be needed to make the concept work.

As already noted, the U.S. military has a clear interest in the on-orbit refueling and servicing capabilities that Northrop Grumman’s MRV spacecraft is designed to provide now. This could also be key to protecting and sustaining elements of Golden Dome, as well as other critical new space-based sensor and other satellite constellations.

The scheduled launch of the first MRV spacecraft today is a very important milestone all around, and one that might open the door to a very different kind of ‘armed’ space-based capability.

Contact the author: joe@twz.com

On the same day that the Chief of Naval Operations answered our question about the future of the F/A-XX sixth-generation naval fighter program, stating a final selection between the offerings from Boeing and Northrop Grumman will be coming in August, the latter of the two firms has released a new teaser video. Previously, we only had one rendering of Northrop’s notional F/A-XX concept. Now we have a more detailed panning video and a new head-on perspective view.

The video clip, posted on Northrop Grumman’s X account this evening, as seen below, states: “We’re bringing tomorrow’s horizon into focus, faster, stronger, and ready when the warfighter needs it.”

What we see in the clip is the same general design we saw in the still image earlier, but much more of it. This includes a head-on shot, showing the aircraft’s stealthy and efficient tailless design and rear-set dorsal inlets, as well as its very broad nose and canopy.

The aircraft in the new stylized video clip has some interesting proportions. The size of the landing gear and especially the canopy give it something of a smaller overall appearance than what one would expect from a heavy sixth-generation naval fighter that will be stuffed with fuel and weapons. Of course, this could be due to the somewhat ‘cartoonish’ nature of this new glitzy clip, and how accurate this rendering is to the actual Northrop Grumman F/A-XX is still unknown. At the very least, some of the aircraft’s features (such as its inlets) will have been significantly changed for security issues pertaining to its sensitive design elements.

We also see the wings, which look like they have a bit of camber on the outer sections and possibly a bit of ‘crank’ too. We also see the wings folded in the first part of the clip.

What could be a weapons bay with its doors open is also visible in some of the angles seen in the clip. At first glance, this appeared to be for the jet’s very stout-looking landing gear, but they are curved inward. There are additional doors on the centerline, as well, pointing to two separate bays.

Overall, because of the size of the canopy, it is hard to tell if this is a single-seat or a two-crew aircraft. The canopy is so large in these renders that a side-by-side crew arrangement may even be possible, although that seems unlikely.

Once again, we don’t know how close this computer-generated model is to the real thing, but considering this aircraft will have to carry a sizable weapons load and have something approaching a combat radius of 1,000-miles, while still fitting well within the confines of a supercarrier, it should be firmly in the heavy fighter class.

Maybe Northrop Grumman will share more on its F/A-XX at the annual Sea-Air-Space convention in Washington this week, and we will be ready to report it from the scene if they do.

We have reached out to Northrop Grumman with questions, and we will update this post if we hear back.

Contact the author: Tyler@twz.com

Northrop Grumman CEO Kathy Warden says she is confident in her company’s ability to deliver next-generation carrier-based fighters to the U.S. Navy if it is picked as the winner of the F/A-XX competition. The U.S. Navy’s top officer said yesterday that the goal was to award the F/A-XX contract by August of this year, but also that one unnamed contractor in the running “really can’t deliver in the timeframe we need it.”

Chief of Naval Operations (CNO) Adm. Daryl Caudle offered his latest comments on F/A-XX yesterday in response to a direct question from TWZ at a roundtable on the sidelines of the Navy League’s Sea-Air-Space 2026 exposition. The Pentagon had tried to put the Navy’s future fighter ambitions on hold last year, arguing that the U.S. industrial base did not have sufficient capacity to support work on two sixth-generation combat jets simultaneously. Boeing won the contract to build what is now called the F-47 for the U.S. Air Force in March 2025. Boeing is the only other company known to be in the running now for F/A-XX. Last year, it was reported that Lockheed Martin had been eliminated from the competition.

Late yesterday, Northrop Grumman also released a new computer-generated F/A-XX promotional video, seen below. You can read our analysis of what is seen therein here.

“We do expect the Department [of the Navy] to make an award selection in the third quarter,” Northrop Grumman’s Warden said during a routine earning call today in response to a direct question about Adm. Caudle’s remarks. “We are confident in our ability to deliver our solution to the Navy.”

She did not explicitly confirm or deny that the CNO had been referring to Northrop Grumman when he mentioned a contractor’s inability to meet the Navy’s schedule needs on F/A-XX.

“We and our suppliers are prepared to bring the workforce and infrastructure that’s needed to execute the program, and our track record on B-21 demonstrates that ability to deliver a complex aircraft on schedule,” Warden added. “Regarding the financials, we’d expect upside to the sales and earnings from our current guidance, if we are entrusted to build the F/A-XX, and it would be a top priority for our company to do so.”

Air Force officials, as well as members of Congress, regularly describe the B-21 Raider bomber as a model acquisition program that has been able to keep on schedule and budget despite at least some hurdles along the way. Earlier this year, Northrop Grumman reached an agreement with the Air Force to accelerate B-21 production.

It’s also worth remembering that Northrop Grumman withdrew in 2023 from the Air Force competition that would lead to the F-47. The company framed the decision at the time as a voluntary one.

“I’ll just say that, when I noted we have other opportunities we are pursuing, I won’t disclose at this point exactly what those are until a little more information comes out,” Warden, who was also CEO at that time, said when announcing the withdrawal, which was widely seen as a reference to F/A-XX. “You could assume that if we feel we’re well-positioned, and the government is appropriately balancing risk and reward, as I said that that would be a program we would pursue.”

Former top Air Force officials subsequently said that Northrop Grumman’s bid had been on the verge of getting cut.

As mentioned, industrial base capacity questions have swirled around F/A-XX. The Pentagon had tried to effectively shelve the Navy’s next-generation fighter program in its proposed budget for the 2026 Fiscal Year. At the time, a senior U.S. defense official explicitly said that the decision was “due to our belief that the industrial base can only handle going fast on one program at this time, and the presidential priority to go all in on F-47, and get that program right.”

Congress later intervened to appropriate some $1.69 billion in funding to keep F/A-XX moving ahead in the 2026 Fiscal Year.

“I will tell you, we, Northrop Grumman, are ready to execute F/A-XX,” Tom Jones, President of Northrop Grumman’s Aeronautics Systems sector, had also told TWZ and other outlets in response to a question about industrial base capacity in relation to the program back in December. “We’re looking to try and make sure that the customer community knows that we believe that we’re ready to go and we can execute it.”

Boeing Defense and Space CEO Steve Parker had also pushed back on the assertion that the U.S. industrial base could not support F-47 and F/A-XX at the same time last year. The company’s pitch for the Navy’s program appears to be a navalized adaptation of the F-47.

“The Air Force has got a lot of demand on the system. The Navy’s got a lot of demand,” Adm. Caudle had also said yesterday. “So there was, you know, a check twice, cut once, kind of mentality here on this decision. And now there, I think we’re all on the same page on the reason why the hard look needed to be done. I’m good with it.”

Questions about the overall future of F/A-XX do remain, despite clear support from top Navy leaders like Caudle and Congress. The Navy looks set to request just over $140 million for the program in Fiscal Year 2027. This is a very meager sum, especially for a program of this magnitude. In contrast, the Air Force is seeking $5 billion in additional funding for F-47. Billions of dollars have already been appropriated for the Air Force’s next-generation fighter effort.

The Pentagon and the individual services are rolling out more details about their annual budget proposals today, which could offer more insights into the plans now for F/A-XX in the coming years. Securing the contract to build the Navy’s next-generation fighter is still likely to be an important win for whichever company the service selects in the end.

UPDATE: 4/22/2026 –

The U.S. Navy has issued a statement regarding Adm. Caudle’s comments earlier this week, which is as follows:

“During a question-and-answer session at the Sea-Air-Space Exposition, Chief of Naval Operations Admiral Daryl Caudle was asked about the Navy’s sixth-generation strike fighter program (F/A-XX). Adm. Caudle emphasized that the Navy’s priority is ensuring through due diligence the selected vendor can deliver the required capability on the timeline needed by the fleet while also considering broader industrial base capacity. Any reference to ‘a specific offeror’ was intended as a general anecdotal comment and was not directed at any vendors currently under consideration.”

Contact the author: joe@twz.com