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USAF photographer James Rainier's remote camera captured this spectacular view of Falcon Heavy Block 5 side boosters B1052 and B1053 returning to SpaceX Landing Zones 1 and 2. (USAF - James Rainier) USAF photographer James Rainier's remote camera captured this spectacular view of Falcon Heavy Block 5 side boosters B1052 and B1053 returning to SpaceX Landing Zones 1 and 2. (USAF - James Rainier)

SpaceX

SpaceX’s third Falcon Heavy launch is just one month away

Falcon Heavy side boosters B1052 and B1053 land at Landing Zones 1 and 2 (LZ-1/LZ-2) after their launch debut and Falcon Heavy's first commercial mission. Both will fly again as part of the STP-2 mission. (USAF - James Rainier)

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SpaceX is exactly one month away from Falcon Heavy’s next scheduled launch, an important mission for the US Air Force known as Space Test Program 2 (STP-2). Carrying 24 satellites of various sizes, Falcon Heavy is scheduled to lift off for the third time as early as June 22nd.

In support of the mission, SpaceX will need to completely integrate Falcon Heavy and prepare the rocket for a routine static fire test approximately one week prior to launch, sometime in mid-June. STP-2 will be critical to both SpaceX and the USAF for a number of reasons, ranging from rocket reusability to the future of US military launch procurement.

Rapid Falcon Heavy reuse

From a technological standpoint, Falcon Heavy Flight 3 will be a milestone in large part due to its reuse of two Falcon Heavy side boosters, previously flown on April 11th as part of Falcon Heavy’s Arabsat 6A commercial launch debut. Around eight minutes after launching the ~6450 kg (14,200 lb) satellite on its way to an exceptionally high transfer orbit of 90,000 km (56,000 mi), side boosters B1052 and B1053 completed flawless landings at LZ-1 and LZ-2.

Both boosters were quickly ‘broken over’ (brought horizontal) and transported to Pad 39A’s main hangar for inspection and refurbishment. Relative to almost all other Block 5 boosters, Falcon Heavy Flight 2’s side boosters were subjected to a uniquely gentle reentry thanks to a lower velocity stage separation. As such, they should be easier to turn around than most, but given that the boosters are also acting as partial pathfinders for the reuse of actual Falcon Heavy hardware, they are unlikely to break any records.

Sadly, the first Falcon Heavy Block 5 center core – B1055 – was toppled in high seas while still aboard drone ship Of Course I Still Love You (OCISLY), cutting short any possibility of future reuses of the thoroughly scorched booster. For unknown reasons, be it an unrelated USAF requirement or SpaceX simply choosing caution, plans already accounted for a new center core flying on STP-2, although both Arabsat 6A side boosters were to be reused. Believed to be B1057, that new Falcon Heavy center core completed its Texas acceptance testing in late April and shipped to Cape Canaveral, Florida soon after.

An Air Force first

Aside from offering a chance for SpaceX to tie its 72-day Falcon 9 turnaround record twice, STP-2 has unexpectedly become a keystone of the US military’s interest in certifying flight-proven rockets for military launches. The USAF has described the reuse of Falcon Heavy boosters on STP-2 as a step forward for all future reusable launch vehicles, but the reality is that SpaceX is and will remain the only player in town until 2022 at the earliest. The next closest entrant – Blue Origin’s New Glenn rocket – is unlikely to be ready for its launch debut before late ’21 or early ’22. ULA’s “SMART” reuse of Vulcan rocket engine sections is unlikely to be ready before the mid-2020s, likely 2024-2026.

SpaceX, however, has already reused Falcon 9 boosters more than 20 times on orbital-class missions, and the frequency of reuse is only likely to increase with the introduction of the final major Falcon 9 and Heavy upgrade, known as Block 5. Designed with a nominal lifespan of 10+ launches, each booster can support a huge number of missions and also offers the potential to dramatically reduce launch costs down the road. Additionally, as noted by VP of Launch Reliability Hans Koenigsmann, SpaceX firmly believes that reliability will come hand in hand with routine reuse, as each recovered booster can serve as a treasure trove of data. Thanks to reusability, SpaceX can fill recoverable boosters to the brim with cameras and gather full-resolution telemetry otherwise inaccessible for an expendable rocket.

Mission complete! Taken by Airmen Alex Preisser, this photo shows B1052 and B1053 shortly after coming to a rest at SpaceX's Landing Zones.
Falcon Heavy Block 5 side boosters B1052 and B1053 rest at Spacex’s Florida Landing Zones after a flawless launch debut. (USAF – Alex Preisser)

The matter of launch costs is not a particularly significant concern of the US military, mainly a consequence of the incredibly disproportionate relationship between the cost of launch and the cost the military satellite payloads. An excellent example of this disparity can be found in SpaceX’s December 2018 launch of the USAF’s first GPS III satellite: SpaceX’s launch contract cost $82M, while the Lockheed Martin-built spacecraft aboard cost no less than ~$600M.

However, reusable rockets are quite plainly the future of space launch, evidenced by SpaceX’s meteoric rise and rapid cannibalization of the global commercial launch market. As a partial result, the survival of ULA – a Lockheed Martin-Boeing cooperative that builds the Delta IV and Atlas V rockets – is almost completely dependent upon military development and launch contracts. Blue Origin, however, is now offering the promise of an independently stable launch provider thanks to continual funding from owner Jeff Bezos, and reusability will be an absolute necessity if its massive New Glenn rocket is to succeed.

The first Block 5 version of Falcon Heavy prepares for its launch debut, April 2019. (SpaceX)

In short, the USAF is faced with a simple proposition: get behind reusable rockets or risk falling behind. SpaceX is more than happy to ease the conservative military branch into the new era, and Falcon Heavy’s STP-2 launch will be a major step in the right direction. Thanks to its reuse of two side boosters, Air Force officials will be able to observe the process of rapid refurbishment firsthand, providing information they will then use to develop certification requirements for flight-proven rockets. More generally, STP-2 will also act as a dedicated demonstration that SpaceX and the USAF will use to fully certify Falcon Heavy for military launches, hopefully ending Delta IV Heavy’s decade-long monopoly over military heavy lift.

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Eric Ralph is Teslarati's senior spaceflight reporter and has been covering the industry in some capacity for almost half a decade, largely spurred in 2016 by a trip to Mexico to watch Elon Musk reveal SpaceX's plans for Mars in person. Aside from spreading interest and excitement about spaceflight far and wide, his primary goal is to cover humanity's ongoing efforts to expand beyond Earth to the Moon, Mars, and elsewhere.

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SpaceX maintains unbelievable Starship target despite Booster 18 incident

It appears that it will take more than an anomaly to stop SpaceX’s march towards Starship V3’s refinement.

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Credit: SpaceX/X

SpaceX recently shared an incredibly ambitious and bold update about Starship V3’s 12th test flight. 

Despite the anomaly that damaged Booster 18, SpaceX maintained that it was still following its plans for the upgraded spacecraft and booster for the coming months. Needless to say, it appears that it will take more than an anomaly to stop SpaceX’s march towards Starship V3’s refinement. 

Starship V3 is still on a rapid development path

SpaceX’s update was posted through the private space company’s official account on social media platform X. As per the company, “the Starbase team plans to have the next Super Heavy booster stacked in December, which puts it on pace with the test schedule planned for the first Starship V3 vehicle and associated ground systems.” 

SpaceX then announced that Starship V3’s maiden flight is still expected to happen early next year. “Starship’s twelfth flight test remains targeted for the first quarter of 2026,” the company wrote in its post on X. 

Elon Musk mentioned a similar timeline on X earlier this year. In the lead up to Starshp Flight 11, which proved flawless, Musk stated that “Starship V3 is a massive upgrade from the current V2 and should be through production and testing by end of year, with heavy flight activity next year.” Musk has also mentioned that Starship V3 should be good enough to use for initial Mars missions.

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Booster 18 failure not slowing Starship V3’s schedule

SpaceX’s bold update came after Booster 18 experienced a major anomaly during gas system pressure testing at SpaceX’s Massey facility in Starbase, Texas. SpaceX confirmed in a post on X that no propellant was loaded, no engines were installed, and personnel were positioned at a safe distance when the booster’s lower section crumpled, resulting in no injuries.

Still, livestream footage showed significant damage around the liquid oxygen tank area of Booster 18, leading observers to speculate that the booster was a total loss. Booster 18 was among the earliest vehicles in the Starship V3 series, making the failure notable. Despite the setback, Starship V3’s development plans appear unchanged, with SpaceX pushing ahead of its Q1 2026 test flight target.

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SpaceX issues statement on Starship V3 Booster 18 anomaly

The incident unfolded during gas-system pressure testing at the company’s Massey facility in Starbase, Texas. 

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Credit: SpaceX/X

SpaceX has issued an initial statement about Starship Booster 18’s anomaly early Friday. The incident unfolded during gas-system pressure testing at the company’s Massey facility in Starbase, Texas. 

SpaceX’s initial comment

As per SpaceX in a post on its official account on social media platform X, Booster 18 was undergoing gas system pressure tests when the anomaly happened. Despite the nature of the incident, the company emphasized that no propellant was loaded, no engines were installed, and personnel were kept at a safe distance from the booster, resulting in zero injuries.

“Booster 18 suffered an anomaly during gas system pressure testing that we were conducting in advance of structural proof testing. No propellant was on the vehicle, and engines were not yet installed. The teams need time to investigate before we are confident of the cause. No one was injured as we maintain a safe distance for personnel during this type of testing. The site remains clear and we are working plans to safely reenter the site,” SpaceX wrote in its post on X. 

Incident and aftermath

Livestream footage from LabPadre showed Booster 18’s lower half crumpling around the liquid oxygen tank area at approximately 4:04 a.m. CT. Subsequent images posted by on-site observers revealed extensive deformation across the booster’s lower structure. Needless to say, spaceflight observers have noted that Booster 18 would likely be a complete loss due to its anomaly.

Booster 18 had rolled out only a day earlier and was one of the first vehicles in the Starship V3 program. The V3 series incorporates structural reinforcements and reliability upgrades intended to prepare Starship for rapid-reuse testing and eventual tower-catch operations. Elon Musk has been optimistic about Starship V3, previously noting on X that the spacecraft might be able to complete initial missions to Mars.

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SpaceX Starship Version 3 booster crumples in early testing

Photos of the incident’s aftermath suggest that Booster 18 will likely be retired.

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Credit: SpaceX/X

SpaceX’s new Starship first-stage booster, Booster 18, suffered major damage early Friday during its first round of testing in Starbase, Texas, just one day after rolling out of the factory. 

Based on videos of the incident, the lower section of the rocket booster appeared to crumple during a pressurization test. Photos of the incident’s aftermath suggest that Booster 18 will likely be retired. 

Booster test failure

SpaceX began structural and propellant-system verification tests on Booster 18 Thursday night at the Massey’s Test Site, only a few miles from Starbase’s production facilities, as noted in an Ars Technica report. At 4:04 a.m. CT on Friday, a livestream from LabPadre Space captured the booster’s lower half experiencing a sudden destructive event around its liquid oxygen tank section. Post-incident images, shared on X by @StarshipGazer, showed notable deformation in the booster’s lower structure.

Neither SpaceX nor Elon Musk had commented as of Friday morning, but the vehicle’s condition suggests it is likely a complete loss. This is quite unfortunate, as Booster 18 is already part of the Starship V3 program, which includes design fixes and upgrades intended to improve reliability. While SpaceX maintains a rather rapid Starship production line in Starbase, Booster 18 was generally expected to validate the improvements implemented in the V3 program.

Tight deadlines

SpaceX needs Starship boosters and upper stages to begin demonstrating rapid reuse, tower catches, and early operational Starlink missions over the next two years. More critically, NASA’s Artemis program depends on an on-orbit refueling test in the second half of 2026, a requirement for the vehicle’s expected crewed lunar landing around 2028.

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While SpaceX is known for diagnosing failures quickly and returning to testing at unmatched speed, losing the newest-generation booster at the very start of its campaign highlights the immense challenge involved in scaling Starship into a reliable, high-cadence launch system. SpaceX, however, is known for getting things done quickly, so it would not be a surprise if the company manages to figure out what happened to Booster 18 in the near future.

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