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SpaceX returns to Starship program roots with new ‘test tank’ prototype

Similar to test tanks SN2 (pictured here) and SN7.1, Starship test tank SN7.2 is partially focused on qualifying changes to the rocket's complex thrust dome. (NASASpaceflight - bocachicagal)

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It’s now clear that SpaceX is preparing to return to the roots of its Starship program with the latest in a series of one-off ‘test tanks’ meant to qualify upgrades to the rocket’s design and production.

Likely known as Starship SN7.2, the hardware will be the first standalone tank built and tested by SpaceX since SN7.1 was successfully pressurized to failure in a process known as burst testing in September 2020. Following in the footsteps of SN7.1, a simple test tank fully focused on qualifying a change in the steel alloy used to build Starships, SN7.2 was somewhat more complex, swapping one of two smooth forward domes with a thrust dome and adding a ‘skirt’ section.

Built out of the same steel alloy as SN7.1, SN7.2 went through similar testing but included the use of a hydraulic ram designed to simulate the thrust of one, two, or three Raptors on the ‘thrust puck’ those engines would otherwise attach to. Starship test tank SN7.2 appears to be quite similar to SN7.1 – but with one or two crucial differences.

SpaceX is gearing up for another round of destructive Starship tank testing to qualify design and manufacturing upgrades. (NASASpaceflight – bocachicagal)

The first difference, as noted above, is a reduction in the thickness of the steel rings that make up the outer walls and structure of SN7.2’s barrel-like tank section. SpaceX is believed to have reduced that skin thickness by 25% (4mm to 3mm) in an apparent effort to begin a weight reduction process necessary for Starships to eventually achieve their optimal payload goal of ~150 metric tons (~330,000 lb) to low Earth orbit.

4mm Starship test tank SN7.0, June 2020. (NASASpaceflight – bocachicagal)
Starship test tank SN7.2 sections (center, right) and SN15’s forward dome assembly. (NASASpaceflight – bocachicagal)

From some angles, SN7.2’s steel rings do appear slightly flimsier or more liable to warp from the heat of welding than other test tanks in the SN7 range, but the differences are rather subtle. Regardless, a reduction from 4mm to 3mm steel rings could likely cut 5-10% from an orbit-capable Starship’s empty weight. When every gram of Starship mass reduction translates directly into an extra gram of payload, it’s safe to say that SpaceX is just getting started.

It’s unclear if a successful SN7.2 test campaign will result in similar reductions to the steel that makes up Starship tank domes and noses. SN7.2’s forward and thrust domes appear to be more or less identical to almost all prior Starship prototype hardware.

Aside from thinner steel skin, it’s also possible that SpaceX will attempt to hit two birds with one stone and test a second unproven change on SN7.2 – namely an upgraded ‘thrust puck’ design. That new puck design first appeared on a November 2020 shipment from SpaceX’s Hawthorne, CA headquarters. Referring to the cone-like structure Starship’s three central Raptor engines attach to and are fed propellant through, the new design simplifies plumbing complexity by allowing Starship’s fuel and fuel header tanks to attach directly to and feed methane through the puck.

SpaceX’s upgraded thrust puck design is likely to debut on Starship SN15 or a fourth SN7 test tank. (NASASpaceflight – bocachicagal)
SN10’s thrust puck appears a bit more complex, although it accomplishes the same task. (NASASpaceflight – bocachicagal)

It’s unclear which thrust puck design SN7.2 has settled on, though SpaceX’s decision to make SN7.2 an engine section test tank arguably points towards the new puck. Regardless, SpaceX will almost certainly install a skirt section – two reinforced rings – underneath SN7.2 once the tank is welded together, giving it the hold-down clamps needed to secure it to a launch mount while simulating Raptor thrust.

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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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Tesla won’t implement strange Grok character as Musk dispels rumor

It is nice to see that Tesla is not forcing this kind of character upon owners of their vehicles, especially considering that many people had a real problem with it.

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Tesla is not going to implement a strange character as a Grok assistant in its vehicles, as CEO Elon Musk dispelled the rumor, which seemed to truly invoke some quite polarizing reactions.

Yesterday, there was some controversy within the Tesla community as rumors of a Grok assistant, named Mūn (pronounced like Moon), being implemented into the vehicles started to circulate.

It had some legitimacy. It was initially posted by an employee, and it appeared to be a relatively confirmed development.

However, it really did rub some people the wrong way. Mūn was an Anime-style female dressed in promiscuous clothing, so it was not everyone’s style, and I’m sure not everyone’s significant other’s cup of tea. It seemed a very strange decision to add it, especially considering that, at the time, there was no confirmation to dispel the arrival of the Grok assistant.

That was until Tesla CEO Elon Musk stepped in to put the speculation to bed once and for all.

It was somewhat strange that this type of issue arose in the first place, but given that it was initially released by an employee, the entire situation is self-explanatory.

It is nice to see that Tesla is not forcing this kind of character upon owners of their vehicles, especially considering that many people had a real problem with it. Many owners did not shy away from the fact that they would like the option to opt out:

For now, Grok remains a part of Tesla vehicles, and personally, it is very nice to have in my Model Y to answer some quick questions I might have or even to entertain some people in the car.

Nevertheless, I am relieved I won’t have this character forced upon me in my vehicle.

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U.S. Judge dismisses lawsuit against SpaceX Starship Boca Chica launch site

The ruling found that the FAA had met its obligations in reviewing the potential environmental effects of Starship launches.

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(Credit: SpaceX)

A U.S. district court judge has dismissed a lawsuit brought by conservation groups challenging the Federal Aviation Administration’s approval of SpaceX’s expanded rocket launch operations in Boca Chica, Texas. 

The ruling, issued Monday, found that the FAA had met its obligations in reviewing the potential environmental effects of Starship launches.

FAA review withstands legal challenge

The lawsuit centered on whether the FAA properly assessed the impact of SpaceX’s operations on endangered wildlife, including ocelots, jaguarundis, and Kemp’s Ridley sea turtles, as noted in a report from The Guardian. The plaintiffs argued that noise, light pollution, and construction activity degraded the surrounding habitat, which also serves as nesting grounds for threatened shorebirds.

The lawsuit cited SpaceX’s April 2023 Starship test, which destroyed its launchpad and scattered debris across a large area. The blast reportedly ignited a grassfire and damaged wildlife habitats, including a bobwhite quail nest.

Judge Carl Nichols, for his part, ruled that the FAA had satisfied its obligation“to take a hard look at the effects of light on nearby wildlife.” The decision effectively cleared a regulatory hurdle for SpaceX, which has been working to expand Starship launch activity at its Boca Chica facility.

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A continued ramp

SpaceX continues to scale its operations nationwide. Beyond Starship, the company is also seeking approval to nearly double Falcon rocket launches from Vandenberg Space Force Base in California, from 50 annually to 95. 

Former President Trump has also shared his intention to increase U.S. launch capacity, setting a target for substantial growth by 2030. Considering that SpaceX is by far the world’s dominant launch provider, Trump’s support for more launches will likely benefit the private space company.

For now, at least, the ruling should allow continued expansion at a time when Starship remains central to long-term goals such as Mars missions and NASA’s Artemis program.

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Pope Leo XIV slams Elon Musk’s pay package due to misinformation (Opinion)

The Pope’s comments seem to be guided by a misunderstanding of what Elon Musk’s pay package entails.

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Edgar Beltrán, The Pillar, CC BY-SA 4.0 , via Wikimedia Commons

Pope Leo XIV has voiced sharp criticism of corporate pay structures, singling out Tesla CEO Elon Musk and other business leaders as examples of the widening gap between executives and ordinary workers. The pontiff warned that excessive wealth concentration could erode societal values and fuel global polarization.

Pope Leo XIV’s comments seem to be guided by a misunderstanding of what Elon Musk’s pay package entails, and the net positive it would result to TSLA shareholders and the world as a whole.

Pope Leo XIV’s comments

In his first interview since becoming pope in May, Leo XIV, the first US-born head of the Catholic Church, pointed to reports that Musk could become the world’s first trillionaire. As noted in a report from the Financial Times, Pope Leo XIV singled out Elon Musk as an example of the type of wealth that was undermining “the value of human life, of the family, of the value of society.”

“Yesterday, the news (arrived) that Elon Musk is going to be the first trillionaire in the world. What does that mean, and what’s that about? If that is the only thing that has any value any more, then we are in big trouble,” the pontiff stated. 

Musk was not the only executive who caught the ire of the leader of the Catholic Church. He noted that while Musk’s pay was problematic, it was only an example of the “continuously wider gap between the income levels of the working class and the money that the wealthiest receive.” 

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“CEOs that 60 years ago might have been making four to six times what the workers are receiving, the last figure I saw, it’s 600 times what average workers are receiving,” he stated.

Borne out of misrepresentation

A look at Pope Leo XIV’s comments surrounding Elon Musk’s wealth suggests that he may not necessarily be familiar with how the CEO earns his net worth. Musk’s wealth is tied to his stakes in his companies, with a good portion of it coming from Tesla and SpaceX. Thus, quite unlike what the mainstream media narrative might suggest, Elon Musk does not necessarily have a giant vault of gold coins he is hoarding somewhere.

If one were to look at Elon Musk’s pay package, which would result in him becoming a trillionaire, one would see that the CEO could only earn his keep if he proves immense value to Tesla and its shareholders. 

His payout might be notable, but he would have to lead Tesla into becoming an $8.5 trillion company first. At this level, Tesla would likely be a notable force of good that would provide a net benefit for people worldwide. Ultimately, it appears that Pope Leo XIV’s comments about Musk may be borne from information gathered only through mainstream sources, some of which tend to have a notable slant against the CEO.

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