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SpaceX is about to stack Starship on a Super Heavy booster for the first time

SpaceX could stack a Starship on top of a Super Heavy booster for the first time as early as Friday morning. (@StarshipGazer)

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After a slight delay, CEO Elon Musk says that SpaceX is now on track to stack a complete Starship prototype on top of a Super Heavy booster for the first time ever as early as Friday morning.

In the latest stage of SpaceX’s continually impressive “Starbase Surge,” the company rolled the first orbital-class Starship prototype’s aft tank section from its birthplace in the factory “midbay” to a much larger “high bay” around noon on August 3rd. Mere hours later, Elon Musk revealed that SpaceX had fitted the Starship with a full six Raptors – a first for any Starship prototype, though Super Heavy Booster 4 technically beat it to the punch with the installation of a staggering 29 Raptor engines hours prior.

The rocket’s conical nose section joined it in the high bay later that evening and SpaceX wasted no time stacking and welding the two Starship halves together early on August 4th, effectively completing the basic structure of Ship 20 (S20). After a day of final integration work, Starship S20 left the high bay around dawn on August 5th and took to the highway for a brief trip from SpaceX’s Boca Chica factory to launch and testing facilities just a mile and a half to the east.

On August 3rd, Super Heavy Booster 4 – fitted with 29 functional Raptor engines – made the same trip from build site to launch pad, where it sat on the transporter overnight. On August 4th, with slightly calmer winds, SpaceX installed the immense ~69m (~225 ft) tall rocket booster on an orbital launch mount that itself had only been installed less than a week prior.

Ship 20 arrived at the orbital launch site a few hours after heading out and was eventually moved directly beside Booster 4 and the orbital launch mount and attached to the largest crane in SpaceX’s arsenal. After several hours sitting in one place, SpaceX announced over a sitewide loudspeaker system that all further stacking operations had been called off for the day, which Musk later confirmed on Twitter was due to wind conditions at the launch site.

Had the weather cooperated, SpaceX’s plan was to install Starship S20 on top of Super Heavy Booster 4, a feat that would have marked the first time a two-stage Starship rocket has ever been fully assembled. Due to the current setup’s temporary nature, SpaceX must complete that stacking process with a vast crawler crane – the same crane used to fully assemble a ~145m (~475 ft) tall Starship integration tower visible directly behind the rocket.

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SpaceX’s Starship launch tower was stacked to its full height on July 28th. (@StarshipGazer)

Sitting on top of the fairly tall orbital launch mount, Starship S20 and Super Heavy Booster 4 will stand about as tall as that 145m launch tower, though the booster and ship itself are expected to be just shy of 120m (~390 ft) from tip to Raptor tail. Once stacked, the vehicle will be the tallest rocket assembled in the history of spaceflight.

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 Starship Flight 10: What to expect

SpaceX implemented hardware and operational changes aimed at improving Starship’s reliability.

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Credit: SpaceX

SpaceX is preparing to launch the tenth test flight of its Starship vehicle as early as Sunday, August 24, with the launch window opening at 6:30 p.m. CT. 

The mission follows investigations into anomalies from earlier flights, including the loss of Starship on its ninth test and a Ship 36 static fire issue. SpaceX has since implemented hardware and operational changes aimed at improving Starship’s reliability.

Booster landing burns and flight experiments

The upcoming Starship Flight 10 will expand Super Heavy’s flight envelope with multiple landing burn trials. Following stage separation, the booster will attempt a controlled flip and boostback burn before heading to an offshore splashdown in the Gulf of America. One of the three center engines typically used for landing will be intentionally disabled, allowing engineers to evaluate whether a backup engine can complete the maneuver, according to a post from SpaceX.

The booster will also transition to a two-engine configuration for the final phase, hovering briefly above the water before shutdown and drop. These experiments are designed to simulate off-nominal scenarios and generate real-world data on performance under varying conditions, while maximizing propellant use during ascent to enable heavier payloads.

Starship upper stage reentry tests

The Starship upper stage will attempt multiple in-space objectives, including deployment of eight Starlink simulators and a planned Raptor engine relight. SpaceX will also continue testing reentry systems with several modifications. A section of thermal protection tiles has been removed to expose vulnerable areas, while new metallic tile designs, including one with active cooling, will be trialed.

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Catch fittings have been installed to evaluate their thermal and structural performance, and adjustments to the tile line will address hot spots observed on Flight 6. The reentry profile is expected to push the structural limits of Starship’s rear flaps at maximum entry pressure.

SpaceX says lessons from these tests are critical to refining the next-generation Starship and Super Heavy vehicles. With Starfactory production ramping in Texas and new launch infrastructure under development in Florida, the company is pushing to hit its goal of achieving a fully reusable orbital launch system.

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Elon Musk takes aim at Bill Gates’ Microsoft with new AI venture “Macrohard”

It is quite an appropriate name for a company that’s designed to rival Microsoft.

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Credit: xAI/X

Elon Musk has set his sights on Microsoft with a new company called “Macrohard,” a software venture tied to his AI startup, xAI. 

Musk described the project as a “purely AI software company” that’s designed to generate hundreds of specialized coding and generative AI agents that could one day simulate products from companies like Microsoft entirely through artificial intelligence.

Macrohard‘s Purpose

Musk announced Macrohard on Friday, though xAI had already registered the trademark with the US Patent Office a few weeks ago, as noted in a PC Mag report. Interestingly enough, this is not the first time that Musk has mentioned such an initiative.

Just last month, he stated that xAI was “creating a multi-agent AI software company, where Grok spawns hundreds of specialized coding and image/video generation/understanding agents all working together and then emulates humans interacting with the software in virtual machines until the result is excellent.”

At the time, Musk stated that “This is a macro challenge and a hard problem with stiff competition,” hinting at the venture’s “Macrohard” moniker. A few years ago, Musk also posted “Macrohard >> Microsoft” on X. 

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Powered by xAI and Colossus

Macrohard appears to be closely linked to xAI’s Colossus 2 supercomputer project in Memphis. Musk has confirmed plans to acquire millions of Nvidia GPUs, joining rivals such as OpenAI and Meta in a high-stakes race for AI computing power. Colossus is already one of the most powerful supercomputer clusters in the world, and it is still being expanded.

xAI is only a couple of years old, having been founded in March 2023. During its Engineering Open House event in San Francisco, Elon Musk highlighted that the company’s speed will be its primary competitive edge. “No SR-71 Blackbird was ever shot down and it only had one strategy: to accelerate,” Musk said.

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Elon Musk confirms he’s still in wartime CEO mode

He is still locked in.

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Wcamp9, CC BY 4.0 , via Wikimedia Commons

Elon Musk tends to use social media platform X as his personal platform to express himself, so much so that critics tend to allege that the CEO is no longer serious about his numerous companies. 

As per Musk, he is still very much in wartime CEO mode, despite all the jokes and fun posts about Ani on X. 

Elon Musk leads several prolific companies, much more than the average CEO. And while Tesla is the only publicly traded entity that he currently leads, Musk is so visible that everyone across the internet pretty much has a strong opinion of him one way or another. For his longtime supporters and followers, however, what truly matters is if Musk is locked in.

Considering that Elon Musk’s feed on X has recently been filled with AI imagery, a good portion of which involve AI-rendered women, some X users have expressed concerns that the CEO may be losing focus once more. Musk responded to one such user by highlighting his very busy schedule and his numerous active projects. 

Needless to say, Elon Musk is still locked in. He is still in “wartime CEO” mode.

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As per the CEO, even his recent AI posts about AI are “part of a broader vision and strategy.” He also highlighted that SpaceX’s Starship Flight 10 is launching in a few days, xAI’s Grok 5 is starting its training next month, and Tesla’s Autopilot V14 is also coming next month. As per Musk, “long-term strategy is compelling.”

Elon Musk’s comments are quite accurate. While he may seem to spend all his time on X, after all, he is very much still neck-deep in all his companies’ projects. There is a reason why Musk became known as a visionary, and a lot of it is because he really is intimately involved in all of his companies’ projects. 

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