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A new milestone in Space Force responsive launch operations

The U.S. Space Force's concept of "responsive space" has centered on one question: how quickly can a commercial company launch a replacement satellite after receiving military orders?

The latest Victus Haze demonstration under the Space Force's Tactically Responsive Space (TacRS) program suggests the answer is no longer just about getting into orbit. It's about what a spacecraft can do once it gets there.

A recent demonstration completed what officials describe as the first tactical rendezvous and intercept between two commercially developed spacecraft. In the exercise, Rocket Lab launched its Puma spacecraft from New Zealand on June 19 after receiving a notice-to-launch order about 16 hours earlier. Once in orbit, Puma rendezvoused with True Anomaly's Jackal-0004 spacecraft, launched aboard a SpaceX Falcon 9 rideshare mission in May.

A shift in the TacRS program

An earlier mission in 2023 known as Victus Nox demonstrated that commercial providers could launch a satellite within roughly a day of receiving orders. Victus Haze expanded that concept by testing whether a newly launched spacecraft could quickly begin rendezvous, proximity operations and inspection of another object already in orbit — capabilities that would be needed if the military were called upon to investigate suspicious activity, assess damage to a U.S. satellite or characterize an adversary's spacecraft during a crisis.

According to True Anomaly, Jackal-0004 acquired Rocket Lab's spacecraft within hours of its arrival in a previously unknown orbit, then performed multiple circumnavigations while collecting imagery from different aspects. The company said its Mosaic autonomy software planned the mission, executed propulsion maneuvers and conducted imaging passes, completing the Space Force task in 61 hours, or 11 hours ahead of the program's 72-hour deadline.

When Victus Haze contracts were awarded in 2024, the plan called for both Rocket Lab and True Anomaly to conduct responsive launches, with True Anomaly's spacecraft flying on a Firefly Aerospace Alpha rocket after receiving its own 24-hour launch order. Instead, the operational demonstration paired Rocket Lab's newly launched spacecraft with Jackal-0004, which was already on orbit.

Neither the Space Force nor True Anomaly has publicly explained when or why the mission architecture changed. The decision may have been influenced by Firefly's ongoing effort to return its Alpha rocket to flight after the vehicle was grounded following a launch failure earlier this year, although neither company has linked the change to Alpha's status.

The exercise suggests the Space Force envisions commercial spacecraft as part of a persistent on-orbit architecture that can be called upon as needed, rather than assets launched only after a crisis begins.

The broader objective is to determine whether commercial providers can routinely execute military space missions on timelines measured in days instead of months.

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Pegasus and Atlas: The end of two eras

Two launches on consecutive days last week marked milestones that, taken together, say a great deal about the transition under way in the launch industry.

On July 2, United Launch Alliance launched the final Atlas 5 mission purchased by Amazon Leo for its low Earth orbit broadband constellation, closing one of the most important commercial launch campaigns in the rocket's history. A day later, Northrop Grumman's Pegasus XL air-launched rocket successfully deployed a spacecraft that will attempt to extend the life of an operational NASA vehicle.

The missions had little in common operationally. But each represented the end of one chapter and the beginning of another.

For Pegasus, the July 3 launch from Kwajalein Atoll could prove to be its last. Developed by Orbital Sciences — now part of Northrop Grumman — and first flown in 1990, Pegasus became the world's first privately developed orbital launch vehicle and the first operational rocket launched from an aircraft. Over 46 missions, a modified L-1011 carrier aircraft carried the winged rocket to about 40,000 feet before releasing it for ignition.

The Swift Boost mission deployed a robotic servicing spacecraft built by Katalyst Space Technologies. Its assignment is to rendezvous with NASA's Neil Gehrels Swift Observatory, capture it and raise it into a higher orbit.

Swift, launched in 2004 to study gamma-ray bursts and other high-energy astrophysical phenomena, remains scientifically productive. But increasing atmospheric drag caused by heightened solar activity is slowly pulling the spacecraft toward reentry. Because Swift has no propulsion system, NASA faced a choice: replace a functioning observatory or attempt to save it.

The agency chose the latter, concluding that a roughly $30 million servicing mission was significantly less expensive than building a replacement spacecraft.

The changing launch economics

When it entered service, Pegasus offered capabilities few others could match. Air launch eliminated dependence on fixed launch pads, allowed access to a broad range of orbital inclinations and provided scheduling flexibility that appealed to government science missions.

Over time, however, those advantages became less compelling.

As satellites became smaller and cheaper, many customers opted to fly as rideshare payloads rather than purchase dedicated launches. At the same time, Rocket Lab, Firefly Aerospace and other companies entered the small-launch market, while SpaceX's Falcon 9 rideshare program dramatically lowered the cost of reaching orbit.

Pegasus also carried structural disadvantages. Maintaining a dedicated L-1011 carrier aircraft, specialized crews and supporting infrastructure made economic sense when the rocket flew regularly. As launch cadence slowed, those fixed costs became increasingly difficult to justify.

Northrop Grumman has stopped short of declaring Pegasus retired. Company officials have said they would consider flying it again if customers determined that an air-launched orbital capability had value for tactically responsive space missions. Commercially, however, Pegasus no longer competes in the market it helped create.

Atlas nearing retirement

Atlas 5 remains one of the most reliable launch vehicles ever built, compiling more than 100 successful missions since entering service in 2002.

Its final campaign for Amazon Leo reinforced that reputation.

Following delays in satellite production and uncertainty surrounding several launch providers, Amazon relied on Atlas 5 to begin deploying its broadband constellation. Since April 2025, ULA completed eight Atlas missions for Amazon Leo, placing the majority of the constellation's satellites currently in orbit and helping the company accelerate deployment toward commercial service.

ULA still has a handful of Atlas 5 launches remaining, most of them reserved for Boeing's Starliner program. ULA intends to transition entirely to Vulcan.

Atlas' departure from the national security launch market was driven largely by policy rather than performance.

For years, Atlas 5 served as the backbone of U.S. military and intelligence launches. But after Russia's annexation of Crimea in 2014, Congress prohibited future national security launches from relying on the Russian-built RD-180 engine that powers Atlas 5's first stage. That decision forced ULA to develop Vulcan, powered by Blue Origin's domestically produced BE-4 engines.

Today, national security space launch missions are being launched by SpaceX and ULA, although Vulcan remains grounded and is expected to return to flight this year.

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