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SpaceX Starship prototypes swap places for next hop test

SpaceX has swapped two almost identical Starships in preparation for the next hop test. (NASASpaceflight - bocachicagal)

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SpaceX is swapping two almost identical Starships to allow for the first flight-proven prototype to be repaired while wasting no time preparing for the next Starship hop test.

Known as Starships serial number 5 and 6 (SN5/SN6), the twin prototypes were built more or less simultaneously and completed within a few weeks of each other. Due to a number of delays largely unrelated to Starship SN5 itself, the rocket’s test campaign suffered several weeks of delays, giving SpaceX’s production team plenty of time to complete sister ship SN6 well before it was needed. For a time, it wasn’t even clear if SN6 had a future, given comments made by CEO Elon Musk that the next full-scale prototype – Starship SN8 – would be a significant upgrade, potentially making SN6 redundant.

However, on August 3rd, SN5 stunned with what appeared to be an almost flawless Starship hop debut. The success confirmed that the design – while likely outdated upon SN8’s arrival – was still more than satisfactory for low-altitude, low-velocity flight tests. In the afterglow of a milestone ~18 months in the making, Musk almost immediately revealed that SpaceX’s next goal was to perform hop test after hop test until Starship flight operations are more or less routine. Today’s transport operations mean that that multi-hop test campaign could be right around the corner.

SpaceX

In line with additional information conveyed by Musk a few days after SN5’s hop debut, SpaceX has transported Starship SN5 back to nearby production facilities and quite literally traded places with Starship SN6 in a vertical assembly hangar.

Starships SN5 and SN6 are pictured here in the late stages of assembly on June 16th. (NASASpaceflight – bocachicagal)

Right on schedule, SpaceX also transported Starship SN6 to the launch pad on the same day as Starship SN5’s factory return. If most of Starship SN5’s testing delays were primarily related to the significant repairs and upgrades made to the pad’s ground support equipment after SN4’s destructive explosion and the launch mount – a steel structure that supports, powers, and fuels Starships – is mostly unscathed after SN5’s hop debut, Starship SN6 could have a much smoother path to testing.

SpaceX teams work to inspect (and presumably repair) the Starship launch mount after SN5’s August 3rd hop debut. (NASASpaceflight – bocachicagal)
Aside from replacement landing legs and, possibly, a new Raptor engine, it’s unclear what repairs Starship SN5 needs before it can prepare for a second hop. (NASASpaceflight – bocachicagal)
On August 5th, SpaceX began stacking Starship SN8 beside the already-completed Starship SN6 prototype. (NASASpaceflight – bocachicagal)

SpaceX has already begun outfitting the launch mount with a hydraulic ram device used to simulate the thrust of a Raptor engine by mechanically stressing a Starship’s thrust structure. That confirms that SpaceX will test Starship SN6 much like the last few prototypes to reach the pad, beginning with an ambient temperature leak test and a cryogenic proof test with liquid nitrogen and Raptor thrust simulation. Once completed, SpaceX will install one Raptor engine on the Starship prototype and proceed into the wet dress rehearsal (WDR) and static fire phase of testing.

Based on Starship SN4’s test campaign, SN6 could kick off its first cryogenic proof test just four days after the rocket is transported to the launch site, followed by a Raptor static fire just a week or so later.

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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 is launching a secret spacecraft that could change how things are made in space

SpaceX’s secret disk-shaped Starfall capsule is targeting a market no reentry vehicle has cracked.

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SpaceX is targeting Tuesday, June 23 for the first flight of Starfall, a reentry capsule the company has developed almost entirely in private. The Falcon 9 launch window opens at 6:43 a.m. ET from Space Launch Complex 40 at Cape Canaveral Space Force Station, with a backup window available the same time on June 24. SpaceX has made no public announcement about the vehicle, only providing launch details. Everything known about it has come through FAA and FCC regulatory filings.

What makes Starfall different starts with its shape. Rather than the traditional cone used by Dragon and every other cargo return capsule in operation, Starfall is a flat disk that measures roughly  10.2 feet (3.1 meters) wide and just 2.5 feet (0.75 meters) tall, and weighing 4,630 pounds (2,100 kg) and capable of returning up to 2,200 pounds (1,000 kilograms) of payload from orbit. The disk geometry maximizes structural efficiency and payload volume relative to mass, and the heat shield mechanically jettisons just before splashdown, allowing recovery teams to retrieve both the capsule and the shield separately from the Pacific Ocean.

The difference with Starfall from existing competitors, such as Varda Space Industries, which has largely built the orbital manufacturing market and returns heavy payloads per flight is that Starfall’s specification is roughly 30 times more per mission, and is designed to be mass-produced and launched on either Falcon 9 or Starship. That combination of volume and launch access is something no standalone startup can replicate, and it puts SpaceX in direct competition with the companies that currently pay it to reach orbit.

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The intended market is orbital manufacturing: pharmaceuticals, protein crystals, semiconductors, and advanced optical fiber that physically cannot be produced in the presence of gravity. FAA documents describe Starfall’s long-term purpose as building a “self-sustaining commercial in-space manufacturing market” and as a potential successor to the industrial capabilities of the International Space Station, which is set to retire in the late 2020s. Military rapid global cargo delivery is a parallel application under active discussion with the Pentagon.

The reason some industries seek manufacturing in space comes down to gravity. On Earth, gravity causes materials to settle, separate, and deform during production. In microgravity, those constraints disappear.

SpaceX’s already controls launch access, which means it currently functions as the landlord for every competitor in the orbital manufacturing return space. Starfall converts that landlord position into vertical ownership, and it would no longer just carry other companies’ capsules to orbit, but rather operate the capsule, own the return logistics, and capture the service revenue directly. Viewed alongside Starlink, Colossus, and the xAI merger, Starfall fits a consistent pattern: SpaceX identifying infrastructure layers that others depend on and moving to own them outright. Orbital manufacturing return is the next layer on that list.

If Tuesday’s reentry, parachute sequence, and recovery demonstration goes as planned, the second FAA-approved test flight follows. A successful pair of demos would position SpaceX to begin offering Starfall as a commercial service, likely first to pharmaceutical and materials science customers before scaling toward the military and broader manufacturing segments.

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Tesla Semi spotted with ground truth validation equipment as launch looms

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Credit: Tesla

The Tesla Semi was spotted mounted with ground truth validation equipment as the company nears its looming launch. The Semi is Tesla’s Class 8 all-electric truck, and has been utilized in its earlier stages by many companies like PepsiCo. and Frito-Lay, who have been using it in a pilot program.

The Semi was spotted in Sunnyvale, California, and sports a typical ground truth validation unit that Tesla routinely uses on its vehicles. Ground truth validation is essentially the process of training supervised algorithms to ensure they can perform reliably. Tesla typically performs this on vehicles that are being released soon:

The Semi being spotted with this type of validation rig is important because it means the company is working on solidifying a Full Self-Driving model for its commercial vehicle offering. This would be a massive development for not only Tesla but also the logistics industry as a whole.

There are strict regulations on driving hours for commercial truck drivers, and autonomy is a way to potentially combat these issues. FSD is already a widely effective way that owners of typical passenger vehicles take stress out of travel. Even launching a semi-autonomous platform for truck drivers to use to increase safety, reduce fatigue, and increase productivity would be a huge development.

Tesla Semi gets strange-but-understandable comparison from Jay Leno

The Semi has already proven to be an ideal solution for companies that use commercial logistics. It has increased efficiency and reduced operating costs for many companies that have been able to use it in pilot programs.

There are expected to be some bumps along the way. Tesla saw some challenges with FSD on the Cybertruck, as it had never had a vehicle with cameras at that height, so some of the features with FSD were not immediately available. Just a week ago, Tesla launched Actually Smart Summon (ASS) for Cybertruck, nearly three years after the vehicle was first delivered to customers.

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President Trump touts new Air Force One with Musk technology

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Credit: Air Force

President Donald Trump unveiled an upgraded Boeing 747-8 at Joint Base Andrews on June 19, 2026, describing the Qatar-gifted aircraft as an interim Air Force One equipped with advanced communications systems, including Starlink, Elon Musk’s SpaceX satellite internet service.

The plane, valued at around $400 million and modified for presidential use, serves as a bridge until the delayed VC-25B replacements arrive. Trump highlighted its luxury features and new technology during remarks to service members.

Trump stated:

“We have communication equipment up there that nobody’s ever seen before. It’s the highest level and, uh, including Starlink. My friend Elon is going to be very happy, but, uh, Starlink and we have, uh, four or five different sets of double and triple communications like people haven’t seen.”

He added:

“And it represents what can happen with hard work, innovation, and aggressive timelines because we did this quickly and yet there’s never been communication like is on this plane.”

The aircraft features a redesigned red, white, and blue livery and has been outfitted with Starlink satellite connectivity alongside other secure systems.

Trump praised the plane’s uniqueness, calling it among the world’s most luxurious. The gift from Qatar and subsequent modifications have drawn attention, with the jet positioned as a solution for presidential travel. It is expected to support operations, including potential ceremonial roles such as Fourth of July flyovers.

The event marked the formal introduction of the converted jet, which will help maintain capabilities while the primary Air Force One fleet undergoes modernization. Defense observers note the inclusion of commercial satellite technology like Starlink as part of efforts to ensure resilient communications, crucial to keep the country running as the President is in the sky.

President Trump’s comments underscored appreciation for rapid upgrades and innovation in equipping the aircraft. The plane remains a U.S. government asset and is slated for eventual transfer related to presidential library purposes after its service.

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