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SpaceX Super Heavy booster reaches full height as Elon Musk talks orbit
Just a few days after CEO Elon Musk said that SpaceX’s first true Super Heavy prototype was “almost done,” the booster has been stacked to its full height.
Standing more than 65 meters (~215 ft) tall, Super Heavy Booster 3 (B3) assembly is now just a few major welds away from completion after SpaceX teams mated the final two sections of its propellant tanks and structure. Assembled separately out of approximately 12 barrel sections each made up of 2-4 steel rings, Booster 3’s methane tank (13 rings) and oxygen tank (23 rings) were stacked together on June 29th, just over six weeks after the process began.
Earlier the same day, speaking at the 2021 Mobile World Congress, Musk confirmed what was now fairly clear to most observers, stating that SpaceX is “going to do its best” to complete Starship’s first orbital (or, at least, space) launch attempt “in the next few months.” In other words, a several-month-old launch target of no later than July 2021 is most likely out of reach despite a strong effort from SpaceX.
The most significant technical hurdles still in the way involve a few incremental Starship milestones and, more importantly, the qualification of the largest and most powerful rocket booster ever built. Standing almost as tall as an entire two-stage Falcon 9 or Falcon Heavy, Super Heavy is expected to weigh more than 3500 tons (~7.7 million lbs) and produce at least ~5000 tons (~11 million lbf) of thrust at liftoff – more than any other rocket booster in history, liquid or solid.
Borrowing heavily from Starship, Super Heavy is mostly built with the same techniques out of the same steel rings, stringers, and structures, save for a few booster-specific components. However, Super Heavy is also designed to use 29-32 Raptor engines while the most SpaceX has ever simultaneously installed, tested, or flown is three. In other words, while Super Heavy is in many ways simpler than Starship, it will still be treading plenty of new ground when it heads to the launch pad for the first time.
Plenty of final integration tasks remain before Super Heavy B3 will be ready to start qualification testing but SpaceX could feasibly be ready to roll the booster to the launch site within the next week or two. Once installed on a former Starship launch mount that’s been customized for booster testing, Super Heavy will likely be put through its first cryogenic proof and static fire test(s) to verify that the massive rocket is performing as expected. The static fire process could be fairly lengthy if SpaceX decides to incrementally increase the number of Raptor engines installed.
In the likely event that Booster 3 begins testing without engines installed, SpaceX will also have to go through the process of installing up to 29 Raptors while Super Heavy is sitting out in the elements on a launch mount. Based on experience with Starship, installing that many engines in situ could take at least several days – and maybe longer. All told, the fun is only just beginning.
SpaceX has announced a new target date for the thirteenth test flight of Starship: Monday, July 20, with the launch window opening at 6:45 p.m ET/5:45 p.m. CT.
This is the first rescheduling attempt of Starship’s 13th test flight. It was set to launch last night, but SpaceX scrubbed the launch attempt.
🚨 SpaceX is now looking at Monday, July 20th at 6:45 p.m ET/5:45 p.m. CT for the 13th test flight of Starship pic.twitter.com/7s8aMJV5Ge
— TESLARATI (@Teslarati) July 17, 2026
CEO Elon Musk revealed that some of the engines on Starship did not start, which automatically triggers a launch abort. Two of the Raptor engines will be removed and replaced.
To be confident of a good flight, 2 Raptors will be removed & replaced. Most probable launch timing is early next week.
— Elon Musk (@elonmusk) July 17, 2026
SpaceX officially announced the new launch window this morning.
Starship’s 13th test launch comes with a few new objectives, but SpaceX does not plan to attempt a catch of the booster, which it has done several times in the past.
For Starship’s Upper Stage, there are some adjustments to ensure engine reusability that will be assessed during the ascent, and 20 operational Starlink V3 satellites are also set to make their way into space. SpaceX also plans to attempt an in-space relight of a single Raptor engine, which is a critical demonstration for future orbital deorbit, refueling, and deep space maneuvers.
Ultimately, it will splash down in the Indian Ocean.
The continuous tests help SpaceX advance the Starship program toward eventual full reusability, operational Starlink V3 deployment, and future missions, which include NASA’s Artemis program.
Elon Musk
SpaceX Starship Flight 13 aborted at Zero and Musk just told us what broke
Four Raptor engines failed to ignite at T-zero, forcing SpaceX to scrub Starship Flight 13 Thursday.
SpaceX scrubbed the Starship Flight 13 launch attempt Thursday evening at the last possible moment, after four of the Super Heavy booster’s 33 Raptor 3 engines failed to ignite during the startup sequence. The 90-minute window had opened at 6:45 p.m. EDT from Starbase in Boca Chica, Texas, and the countdown had proceeded without issue all day, with more than 11.5 million pounds of liquid methane and liquid oxygen being fully loaded into the rocket before the automated abort triggered. SpaceX’s launch directors posted on X, “Standing down from today’s flight test attempt,” and shut down the livestream shortly after.
Musk confirmed the root cause within hours. “Some of the engines didn’t start, triggering an automatic launch abort,” he wrote on X. “To be confident of a good flight, 2 Raptors will be removed and replaced. Most probable launch timing is early next week.” SpaceX engineers began draining propellant tanks immediately and Booster 20 was rolled back to its hangar for inspection.
The timing adds a layer of significance that did not exist during any of the previous 12 Starship flights. This is the first time SpaceX has attempted to launch Starship since the company made its stock market debut in June, listing under ticker SPCX at $135 per share. Public investors are now watching every Starship outcome in real time, and a last-second abort carries more visibility than it would have six months ago.
Flight 13 was designed to be one of the most consequential tests in the program’s history. It was set to carry 20 Starlink V3 satellites, the first operational payload Starship has ever attempted to deploy. Six of those satellites carried external cameras to photograph Starship’s heat shield from the outside during flight, which would act as a self-inspection approach SpaceX has never attempted before. The mission also needed to complete a Raptor engine relight in space, a step SpaceX skipped on Flight 12 in May after losing an engine during ascent. That Flight 12 booster also flipped 90 degrees off course during its boostback burn when five engines failed to reignite.
SpaceX has not announced an official next launch date. Musk’s “early next week” window points to July 21 or 22 at the earliest, pending the engine swap and a return to the pad.
Elon Musk flew under the radar with his recent purchase of a $1 billion energy company, according to Federal Trade Commission (FTC) documents.
Transaction number 202612350 listed Tesla and SpaceX frontman Elon Musk as the acquiring party and CF APR Super Holdings LLC as the seller, with New APR Energy, LLC as the acquired entity. The deal, which closed without public announcement, came to light on May 14.
BREAKING: Elon Musk acquires Jacksonville power company APR Energy in a deal valued at more than $1,000,000,000.00.
— Polymarket Money (@PolymarketMoney) July 15, 2026
Analysts inferred the deal’s scale from minority stakeholder disclosures, including one report of a 5 percent interest sold for approximately $50.4 million. Fortress Investment Group had purchased APR’s assets in late 2024, rebranded the operation as New APR Energy, and subsequently transferred ownership to Musk.
APR Energy specializes in rapidly deployable power infrastructure. The company maintains one of the world’s largest fleets of mobile gas and diesel turbines, with more than 1.1 gigawatts of generation capacity. Its modular units, which are often trailer-mounted, enable turnkey installations ranging from 20 MW to over 500 MW.
APR provides full engineering, procurement, construction, operation, and maintenance services for behind-the-meter power plants, serving everything from data centers, utilities, and industrial clients.
The firm has expanded aggressively to meet surging demand, recently adding turbines and deploying over 100 MW for a major AI hyperscaler. Its solutions bridge critical gaps where grid interconnections face delays of two to five years, according to Yahoo.
The acquisition means something more for Musk. As he continues to expand projects in artificial intelligence, especially xAI, his AI venture, there is a greater need to supply energy-intensive supercomputing clusters, including the Colossus project, with what they need: reliable and high-capacity power.
Ownership of APR provides immediate access to flexible generation assets that can be deployed adjacent to data centers, reducing dependence on a strained infrastructure. It also complements Tesla’s energy storage business, so Musk will be able to pull from his own entities to address the rapid scaling demands of AI training and compute.
SpaceX announces new Starship 13 test flight target date
SpaceX Starship Flight 13 aborted at Zero and Musk just told us what broke
