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SpaceX to attempt to crush Starship test tank

SpaceX is preparing to subject Super Heavy tank B7.1 to a test that will essentially try to crush it. (Starship Gazer)

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A week after rolling a different ‘test tank’ from its South Texas Starship factory to nearby launch and test facilities, SpaceX has moved a second test tank to the pad.

Hearkening back to a period in 2020 where SpaceX built and tested six different Starship test tanks in a period of six months, the company appears to be preparing to test another batch of tanks in the hopes of qualifying Super Heavy booster design changes and clearing the way for a significant upgrade to all Starship tank domes. The sequencing of the latest tank raises some questions, however.

Known unofficially as the “EDOME” tank in reference to a cryptic label on the side of one of its halves, the first new test tank’s purpose is much more cut and dry. While its steel rings appear to be unchanged from current Starship and Super Heavy prototypes, the tank’s two domes share almost nothing in common with the dozens of domes SpaceX has built and tested over the last three years of development. The new domes are much simpler and should be easier to manufacture than the domes SpaceX is familiar with. Thanks to their more spherical shape, they should also be more efficient, allowing future Starship tanks to store a bit more propellant while taking up the same amount of vertical space. SpaceX has yet to begin testing the EDOME tank since its June 8th rollout and does not appear to be much closer to starting 12 days later.

On June 16th, SpaceX rolled a second test tank to the launch site, which eventually joined the EDOME tank at a staging area that used to be a Starship landing pad. Whereas the EDOME tank is more of a generic test article, the second tank – known as B7.1 – is specifically designed to test Super Heavy booster design changes.

B7.1 is a bit like a miniature Super Heavy. Its three-ring top section is mostly similar to the top section of a booster and is reinforced with dozens of external stringers. Oddly, it is missing cutouts for grid fins, and the tank’s forward dome does not have the reaction frame those hypothetical grid fins would anchor to. On the tank’s bottom half, the same stringers are present, and the tank features a new design that squeezes four slightly shorter rings into the same height as three. The Super Heavy thrust dome those rings enclose is also a new design that expands the number of central Raptor engines from 9 to 13.

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It’s unsurprising that SpaceX wants to test those significant design changes. SpaceX did technically conduct a similar test in mid-2021 with a test tank known as BN2.1, but that tank featured a thrust dome with room for 9 older Raptors that would have generated about ~1700 tons of thrust. B7.1’s testing will go a step further than BN2.1 and use a structural test stand that should allow SpaceX to simulate the compressive forces Super Heavy boosters might experience in flight, adding another dimension of stress on top of the 13 hydraulic rams that will simultaneously subject the test tank to the equivalent of ~3000 tons (~6.6M lbf) of thrust.

What is surprising, however, is the fact that SpaceX has waited so long to build and test a tank like B7.1. SpaceX has already completed an entire Super Heavy booster (B7) with all the design changes B7.1 is meant will test and recently installed 33 new Raptor 2 engines on that prototype. A second upgraded booster, B8, is also nearly finished. In that sense, B7.1 is quite unusual and feels more like a reluctant afterthought than part of a methodical development process. If B7.1 suffers an unintentional failure during testing, SpaceX could be forced to abandon two nearly-finished Super Heavy boosters, wasting months of assembly and testing and rendering prototypes that are likely worth tens of millions of dollars all but useless.

B2.1 demonstrates how the ‘can crusher’ uses giant ropes and hydraulics to apply immense compressive forces to Starship tank prototypes. (NASASpaceflight – bocachicagal)

The design changes B7.1 is meant to test are not exactly radical, but it’s still unclear why SpaceX has chosen to conduct those tests after building two entire Super Heavy boosters. Earlier on in Starship development, SpaceX regularly used test tanks to qualify significant design changes before applying those changes to full prototypes, limiting the amount of resources that could be wasted on any unproven prototype. Thankfully, Super Heavy Booster 7 may have already completed similar Raptor thrust simulation tests on the same test stand B7.1 was recently installed on, meaning that SpaceX’s confidence may have been well-placed. However, if the first use of the ‘can crusher’ stand on a Super Heavy test tank finds any problems or ends in failure, B7 and B8 could still be easily rendered unusable or incapable of flight, significantly delaying Starship’s first orbital launch attempt.

Lately, SpaceX has been focused on preparing Starship S24 and Super Heavy B7 for static fire tests that could eventually qualify the pair to support the first orbital test flight. It’s not clear if or when SpaceX will be able to set aside time and evacuate Starbase’s busy orbital launch site to test B7.1 or the EDOME tank.

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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Elon Musk: Self-sustaining city on Mars is plausible in 25-30 years

Musk noted that true self-sufficiency requires Mars to develop “all the ingredients of civilization.”

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Credit: Elon Musk/X

Elon Musk has stated that a self-sustaining human settlement on Mars could be established in 25-30 years, provided launch capacity increases dramatically in the coming decades. 

Speaking at the All-In Summit, the SpaceX CEO said building a self-sufficient colony depends on exponential growth in “tonnage to Mars” with each launch window, highlighting Starship’s role as the company’s pathway to interplanetary initiatives.

Mars settlement goals

Musk noted that true self-sufficiency requires Mars to develop “all the ingredients of civilization,” from food production to microchip manufacturing. Starship Version 3 is expected to support the first uncrewed Mars test flights, while future iterations could reach 466 feet in height and deliver larger payloads critical for settlement. Ultimately, Musk stated that an aggressive timeline for a city on Mars could be as short as 30 years, as noted in a Space.com report.

“I think it can be done in 30 years, provided there’s an exponential increase in the tonnage to Mars with each successive Mars transfer window, which is every two years. Every two years, the planets align and you can transfer to Mars. 

“I think in roughly 15, but maybe as few as 10, but 10-15-ish Mars transfer windows. If you’re seeing exponential increases in the tonnage to Mars with each Mars transfer window, then it should be possible to make Mars self-sustaining in about call it roughly 25 years,” Musk said. 

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Starship’s role

Starship has flown in a fully stacked configuration ten times, most recently in August when it completed its first payload deployment in orbit. The next flight will close out the Version 2 program before transitioning to Starship Version 3, featuring Raptor 3 engines and a redesigned structure capable of lifting over 100 tons to orbit.

While SpaceX has demonstrated Super Heavy booster reuse, Ship reusability remains in development. Musk noted that the heat shield is still the biggest technical hurdle, as no orbital vehicle has yet achieved rapid, full reuse.

“For full reusability of the Ship, there’s still a lot of work that remains on the heat shield. No one’s ever made a fully reusable orbital heat shield. The shuttle heat shield had to go through nine months of repair after every flight,” he said. 

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Tesla Model Y may gain an extra 90 miles of range with Panasonic’s next-gen battery

The Japanese company is pursuing an anode-free design.

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Credit: Tesla Manufacturing

Panasonic is developing a new high-capacity EV battery that could potentially extend the range of a Tesla Model Y by 90 miles. 

The Japanese company, one of Tesla’s key battery suppliers, is pursuing an anode-free design that it says could deliver a “world-leading” level of capacity by the end of 2027.

Panasonic’s anode-free design

The technology Panasonic is pursuing would eliminate the anode during the manufacturing process, as noted in a Reuters report. By freeing up space for more active cathode materials such as nickel, cobalt, and aluminum, the Japanese company expects a 25% increase in capacity without expanding battery size. 

That could allow Tesla’s Model Y to gain an estimated 145 kilometers (90 miles) of additional range if equipped with a battery that matches its current pack’s size. At the same time, Panasonic could use smaller, lighter batteries to achieve the Model Y’s current range. 

Panasonic also aims to reduce reliance on nickel, which remains one of the more costly raw materials. A senior executive previewed the initiative to reporters ahead of a scheduled presentation by Panasonic Energy’s technology chief, Shoichiro Watanabe.

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Tesla implications

The breakthrough, if achieved, could strengthen Panasonic’s position as Tesla’s longest-standing battery partner at a time when the automaker is preparing to enter an era of extreme scale driven by high-volume products like the Cybercab and Optimus.

Elon Musk has stated that products like Optimus would be manufactured at very high scale, so it would likely be an all-hands-on-deck situation for the company’s suppliers.

Panasonic did not share details on production costs or how quickly the new batteries might scale for commercial applications. That being said, the Japanese supplier has long been a partner of Tesla, so it makes sense for the company to also push for the next generation of battery innovation while the EV maker pursues even more lofty ambitions.

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Tesla called ‘biggest meme stock we’ve ever seen’ by Yale associate dean

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Credit: Tesla

Tesla (NASDAQ: TSLA) is being called “the biggest meme stock we’ve ever seen” by Yale School of Management Senior Associate Dean Jeff Sonnenfeld, who made the comments in a recent interview with CNBC.

Sonnenfeld’s comments echo those of many of the company’s skeptics, who argue that its price-to-earnings ratio is far too high when compared to other companies also in the tech industry. Tesla is often compared to companies like Apple, Nvidia, and Microsoft when these types of discussions come up.

Fundamentally, yes, Tesla does trade at a P/E level that is significantly above that of any comparable company.

However, it is worth mentioning that Tesla is not traded like a typical company, either.

Here’s what Sonnenfeld said regarding Tesla:

“This is the biggest meme stock we’ve ever seen. Even at its peak, Amazon was nowhere near this level. The PE on this, well above 200, is just crazy. When you’ve got stocks like Nvidia, the price-earnings ratio is around 25 or 30, and Apple is maybe 35 or 36, Microsoft around the same. I mean, this is way out of line to be at a 220 PE. It’s crazy, and they’ve, I think, put a little too much emphasis on the magic wand of Musk.”

Many analysts have admitted in the past that they believe Tesla is an untraditional stock in the sense that many analysts trade it based on narrative and not fundamentals. Ryan Brinkman of J.P. Morgan once said:

“Tesla shares continue to strike us as having become completely divorced from the fundamentals.”

Dan Nathan, another notorious skeptic of Tesla shares, recently turned bullish on the stock because of “technicals and sentiment.” He said just last week:

“I think from a trading perspective, it looks very interesting.”

Nathan said Tesla shares show signs of strength moving forward, including holding its 200-day moving average and holding against current resistance levels.

Sonnenfeld’s synopsis of Tesla shares points out that there might be “a little too much emphasis on the magic wand of Musk.”

Elon Musk just bought $1 billion in Tesla stock, his biggest purchase ever

This could refer to different things: perhaps his recent $1 billion stock buy, which sent the stock skyrocketing, or the fact that many Tesla investors are fans and owners who do not buy and sell on numbers, but rather on news that Musk might report himself.

Tesla is trading around $423.76 at the time of publication, as of 3:25 p.m. on the East Coast.

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