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SpaceX’s odd Starbase propellant storage tank prototype passes first test
Likely to the relief of many, SpaceX appears to have successfully tested a prototype of the custom-built Starbase propellant storage tanks that will eventually hold thousands of tons of fuel and oxidizer.
For reasons unknown, SpaceX’s built its first ground support equipment (GSE) ‘test tank’ – a subscale prototype designed to quickly verify basic production quality and design goals – months after it began mass-producing operational storage tanks. In fact, of the seven total GSE tanks expected to be built, SpaceX has already completed seven, installed five, and scrapped one. Known as GSE4, SpaceX actually used modified parts of that scrapped tank to assemble the GSE test tank that first rolled to Starbase’s launch (and test) facilities on August 23rd.
Two days later, SpaceX subjected the small tank to its first test.
Given that SpaceX appears to have almost retroactively assembled the GSE4 test tank after building the final products, the results from its testing were always going to be significantly more anxiety-inducing than any of the more than half-dozen other tanks the company has tested in the last year and a half. Having already fabricated, assembled, or even installed six of seven planned GSE tanks, the discovery of major issues during testing could potentially cause months of delays by forcing SpaceX to perform lengthy repairs or even fully scrap all six existing tanks and start over.
Thankfully, at least for the time being, it appears that SpaceX can write off those potential worst-case scenarios. On August 25th, SpaceX took advantage of a test window initially believed to be for Starship S20 and put the cobbled-together GSE4 tank through its paces for the first time. As with previous test tanks, all SpaceX can really do is fill the prototype with liquid nitrogen (LN2), a non-flammable alternative to liquid oxygen or methane propellant that is approximately as cold and heavy. As a storage tank prototype, though, GSE4 has no need for hydraulic ram setups used to simulate the thrust of Raptor engines on several previous prototypes.
As such, one or several cryogenic proof tests were all that were ever really in GSE4’s future. On GSE4’s first test, SpaceX performed a more or less normal cryogenic proof, completely filling the tank with LN2, closing its vents, and then allowing the natural process of LN2 boiloff to raise the tank to the desired test pressure. However, unlike other test tanks, GSE4 never actually appeared to reopen its main vents. In fact, SpaceX may have never actually drained liquid nitrogen from the test tank, instead simply letting it slowly warm up and boil off into gas that was seemingly managed and vented by ground systems instead of the tank itself.
As a result, GSE4 stayed frosty (indicating a significant amount of remaining liquid nitrogen) for more than eight hours, strongly implying that it was either very slowly drained or simply allowed to warm up naturally. Given that large cryogenic storage tanks really don’t have to be significantly pressurized to complete their job, it’s possible that GSE4’s first test was primarily meant to verify the basic structural integrity of a tank that’s slightly different than those on Starship and, more importantly, test a different method of pressure and fluid management where most of that work is done by external, permanent systems on the ground.
That’s exactly what one might expect of rocket tankage slightly modified to serve as ground storage tanks. SpaceX’s GSE tanks never have to act as self-contained units and can instead rely almost entirely on separate systems.
Aside from verifying that that slightly different method of tank operations works as expected, GSE4’s first test likely also allowed SpaceX to better characterize the thermal properties of the thin steel skin and domes that are Starship and GSE tanks. Unlike GSE4, operational GSE tanks will be enclosed inside 12m (~40 ft) wide ‘cryo shells’ designed to insulate their cryogenic contents, but the insulative properties of the inner tanks (or the lack there of, rather) will still determine how well that insulation works and how much is actually needed to reach the desired boiloff rates. A contractor hired by SpaceX has already completed all seven cryo shells, so any results gathered from GSE4 will obviously be more of a check than a developmental test, but data is still data.
Elon Musk
SpaceX Starship gets FAA nod for ninth test flight
The FAA has given the green light for Starship’s ninth test flight.
SpaceX has received FAA approval for the ninth test flight of the Starship rocket. The approval was delayed due to the federal agency finishing its comprehensive safety review of the eighth flight earlier this year.
The FAA said in a statement that it has determined that SpaceX has “satisfactorily addressed the causes of the mishap, and therefore, the Starship vehicle can return to flight.”
The eighth test flight occurred back on March 6. SpaceX completed a successful liftoff of Starship and the Super Heavy Booster, before the two entered stage separation a few minutes after launch.
Starship Flight 8: SpaceX nails Super Heavy booster catch but loses upper stage
The booster returned and was caught by the chopsticks on the launch pad, completing the second successful booster catch in the program’s history. However, SpaceX lost contact with Starship in the upper atmosphere.
The ship broke up and reentered the atmosphere over Florida and the Bahamas.
The debris situation caused the FAA to initiate a mishap investigation:
Starship Flight 8’s Ship 34 provided some beautiful fireworks in the sky during its rapid unscheduled disassembly. Beautiful but unfortunate.
Hopefully, Flight 9 would no longer have any RUD incidents. pic.twitter.com/p4qAToDXOM
— TESLARATI (@Teslarati) March 7, 2025
The FAA said it will verify that SpaceX implements all the corrective actions on Flight 9 that it discovered during the mishap investigation.
There is no current confirmed launch window, but the earliest it could take off from Starbase is Tuesday, May 27, at 6:30 p.m. local time.
To prevent any injuries and potentially limit any damage, the FAA has stayed in contact with various countries that could be impacted if another loss of vehicle occurs:
“The FAA is in close contact and collaboration with the United Kingdom, Turks & Caicos Islands, Bahamas, Mexico, and Cuba as the agency continues to monitor SpaceX’s compliance with all public safety and other regulatory requirements.”
The agency has also stated that the Aircraft Hazard Area (AHA) is approximately 1,600 nautical miles and extends eastward from the Starbase, Texas, launch site through the Straits of Florida, including the Bahamas and Turks & Caicos.
For flight 8, the AHA was just 885 nautical miles.
Hyundai announced on Thursday that it has officially launched real-world testing of its AI-powered EV charging robot, which it is referring to as the ACR.
The Korean company is partnering with both Kia and Incheon International Airport for the testing phase, which was launched with a memorandum of understanding (MOU). The pilot program is going to be used to lay the groundwork for future robot use for EV charging.
Incheon already has a reputation that aligns with the pilot program as it has the largest eco-friendly vehicle infrastructure in Korea, according to Korea JoongAng Daily, which first reported the launch of the pilot program.
Hyundai is partnering with Kia’s Robotics Lab to provide hardware and software solutions for this early rollout.
Yan Hee-won, President of Hyundai Motor’s R&D Division, said:
“This marks an important turning point in validating the practical value of future mobility technologies. With customized automatic charging solutions, we aim to deliver a more convenient and enhanced mobility experience for users.”
The testing phase will be limited in the sense that the charging robot will be deployed for a fleet of eco-friendly airport vehicles. Those who park their EVs at the airport will not be able to use it for use while they’re traveling — at least at first.
Eventually, it will become a great way to give vehicles range while the owners are off on trips.
Tesla had a similar idea several years ago, which it shared viral videos of back in 2015.
Tesla “snake charger” wasn’t just a creepy one-off, suggests Elon Musk
Musk said in 2020 that Tesla still had the intention of making it. However, it has shifted to wireless induction charging, which seems to be a better option simply because of fewer moving parts and better compatibility with the upcoming Robotaxi fleet.
Tesla flexes Robotaxi wireless charging — autonomy from top to bottom
Tesla displayed its wireless charging idea at the “We, Robot” event last year:
Robotaxi wireless charging
No hands required pic.twitter.com/XL746DkGhb
— Tesla (@Tesla) October 18, 2024
Elon Musk
How Tesla could benefit from the ‘Big Beautiful Bill’ that axes EV subsidies
Tesla has a few paths to limit damage from the elimination of tax credits.
The United States House of Representatives passed President Trump’s “Big Beautiful Bill” by a vote of 215 to 214 on Thursday, effectively bringing an end to many EV subsidy programs, like the $7,500 tax credit, by the end of this year.
The bill will not only eliminate the $7,500 credit on new EV purchases, but also the $4,000 credit given on the purchase of used electric vehicles, and a $1,000 credit on the installation of Level 2 chargers. It will also impact solar subsidies that help generate clean energy in a residential setting.
EVs would also be subject to a $250 road use fee.
🚨 The “Big Beautiful Bill” has been passed in the House, meaning:
1) The EV tax credit is in serious jeopardy. It will likely be eliminated for 2026.
2) EVs will likely have a $250 road use fee
3) $1,000 Level 2 charger credit will also be eliminated pic.twitter.com/Aad41say43— TESLARATI (@Teslarati) May 22, 2025
All of these things sound like negatives — truly because they are. Those who are not in a financial position to buy an EV this year, even with the tax credit, might not be able to afford them in the coming years either, unless manufacturers are able to bring pricing to a level that is more accessible to consumers.
In theory, President Trump’s focus on bringing manufacturing back to America would bring prices down, but it won’t happen overnight. Companies will take many years to completely bring manufacturing and part sourcing to the United States.
However, Tesla could feel some positives from this bill, and it all comes down to timing. Of course, in the long term, it wouldn’t be great for the company, especially if it did not have two things going on right now: a slightly lagging delivery pace and the introduction of affordable models.
Tax Credit Sunsetting Advantage
Sunsetting the $7,500 tax credit means one thing: those who have been in limbo over buying an EV from Tesla are going to have to make a decision on whether they want to buy this year and still have access to the credit, or test their luck and hope for price reductions.
More than likely, those who have been on the fence will be willing to pull the trigger this year, and Tesla will definitely gain some sales from this fact alone. Other automakers will, too.
This could help offset Tesla’s slow start to the year, which has been caused by the changeover of production lines of the Model Y across each of its factories globally.
Affordable Models
Tesla said earlier this year that it will roll out affordable models in the first half of 2025. These cars are expected to be around the $30,000 mark, but the company has not shed any true information on what they will cost.
Potential affordable Tesla “Model 2/Model Q” test car spotted anew in Giga Texas
Ideally, the cars would cost under $30,000 without the EV tax credit, which would be more than accessible for many car buyers in the United States.
The introduction of models that are not in need of a tax credit to be affordable to the masses. This would help offset some of the losses Tesla might feel from cars losing the tax credit.
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