Connect with us

News

SpaceX’s Starship rocket just took a big leap towards orbit with latest test success

Starship has passed the most significant milestone in the history of the ambitious launch vehicle. (NASASpaceflight - bocachicagal)

Published

on

A full-scale Starship rocket has passed a critical test for the first time ever, strongly suggesting that the next-generation launch vehicle could be much closer to orbital readiness than most would imagine.

To be clear, a huge amount of work remains before Starship can be deemed anywhere close to its first orbital flight tests, not the least of which is the fabrication and assembly of the first massive Super Heavy booster(s). However, after Starship SN4’s latest successful May 9th test, it’s hard to see any apparent showstoppers that can’t be handled with a combination of fairly routine testing and iterative progress, as well as time and money. There is certainly room for improvement throughout the program but SpaceX has effectively demonstrated that the biggest practical concerns about its approach to Starship are moot.

Captured live on May 9th and 10th by local resident and photographer Mary (bocachicagal) with the help of NASASpaceflight.com, SpaceX worked for about two days to reconfigure its fourth full-scale Starship prototype after two successful Raptor engine static fires and prepare it for a different kind of test. That work mainly involved removing said Raptor and replacing it with a hydraulic ram stand used to simulate the thrust of 1-3 engines without actually needing to perform a static fire test, further allowing SpaceX to simulate much longer engine operations than its spartan test pad could survive. Around 9pm CDT on May 9th (02:00 UTC, May 10), Starship SN4’s latest trial began.

Known as a cryogenic pressure and load test, it differed from a prior “cryo proof test” completed on April 26th, in which Starship was fully loaded with liquid nitrogen (more than twice as cold as dry ice), pressurized to a bit less than 5 bar (~70 psi), and stressed with hydraulic rams. About a week later, after installing a Raptor engine on a full-scale Starship prototype for the first time ever, Starship SN4 fired up said engine on May 5th – another historic first for the next-generation launch vehicle. 30 hours later, SpaceX performed another wet dress rehearsal (WDR) with liquid methane and oxygen and fired up Starship’s Raptor engine again.

Advertisement

After about 48 hours of reconfiguration, SpaceX moved on to a much more serious cryogenic test. As noted by CEO Elon Musk, the 4.9 bar the rocket previously reached was accepted as enough to perform a Raptor static fire test and possibly enough for a low-stress, low-altitude flight test to ~150m (500 ft). For orbital flight, however, Starship needs to withstand a minimum of 6 bar (~90 psi), while 8.5 bar (125 psi) is preferable to give the rocket the 1.4x safety factor optimal for human spaceflight.

This time, SpaceX – having successfully gathered data from two static fire tests and several wet dress rehearsals – was ready to risk Starship SN4 and pressurized it all the way to 7.5 bar (~110 psi). While ~12% shy of minimum human spaceflight standards, Starship SN4 successfully reached and maintained 7.5 bar while the ship stressed with hydraulic rams to simulate the thrust of three Raptor engines, all of which it survived fully intact. What 7.5 bar does offer, however, is a 1.25x safety factor – on the higher end of aerospace industry standards for uncrewed orbital spaceflight (i.e. cargo/satellite launches).

If Starship can reliably sustain tank pressures of 7.5 bar, the ship’s structure is effectively ready for orbital flight. (SpaceX)

Ready for orbit?

Technically, this means that – pending much additional testing and verification with different serial prototypes and (likely) higher pressures – Starship’s stainless steel structure is effectively qualified for uncrewed orbital launches. Of course, reality is much more complex. To actually perform and survive orbital flights, SpaceX will first need to build and similarly qualify the first Super Heavy boosters and ensure that those unprecedentedly large rockets can survive and sustain ~20-30 Raptor engines firing simultaneously.

Super Heavy’s Raptor count has been reduce to 31 engines but that quantity will still give it the most of any rocket booster in history. (SpaceX)

Aside from Super Heavy, it’s unknown if SpaceX has begun testing Raptor engines at the durations they will need to burn to booster Starships into orbit (TBD; likely 5-10 minutes of continuous operation). Along those lines, SpaceX also needs to build, test, and qualify Raptor’s vacuum-optimized sibling to complement the sea level version’s smaller, less-efficient nozzle. Still, Musk has already revealed that RaptorVac could be a matter of weeks from its first static fire and rocket engine development – while incredibly challenging – is more of a known quantity for SpaceX.

Perhaps the most important unknown is whether SpaceX’s recent May 2020 WDRs and static fires have used autogenous pressurization, a more efficient method of pressurizing rockets by using hot gas generated by their own engines. It’s extremely likely that SpaceX has been autogenously pressurizing Starship SN4 for its recent tests, but if that weren’t the case, it would be a big source of schedule uncertainty without significant redesign work.

Ultimately, SpaceX appears to have proven that orbital-class rockets can be built cheaply out of commodified steel in extraordinarily spartan production facilities. Many, many challenges remain but the biggest uncertainty and hurdle facing SpaceX’s Starship program and ambitions is well on its way to being fully put to rest.

Advertisement

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.

Advertisement
Comments

News

Tesla Superchargers open to Lucid Air, but not without one key thing

Lucid’s full lineup of EVs is now able to use Tesla Superchargers in the United States and Canada.

Published

on

Tesla Superchargers will be open to Lucid Air vehicles starting on July 31, a move that comes nearly two years after the companies agreed to terms that would allow them to partner.

Lucid joins a long list of EV makers that have a full lineup of EVs that can utilize Tesla’s extensive Supercharger Network across the United States and parts of Canada. In all, over 32,500 Tesla Superchargers will be accessible to Lucid owners at the end of the month.

Lucid NACS adoption ‘must have been a bitter pill to swallow’: Elon Musk

All Air models, regardless of year or trim level, will gain access to the entire North American Tesla Supercharger Network. It will just need one key thing to charge: an NACS adapter.

Lucid Air sedans will require a DC NACS to CCS1 adapter in order to enable charging at the Tesla stalls. These will be priced at $220 plus tax.

Emad Dlala, Senior VP of Powertrain at Lucid, said:

“In addition to offering the longest-range electric vehicle available, Lucid is committed to offering our customers seamless and wide access to public charging. Access to the Tesla Supercharging Network for the Lucid Air is yet another major milestone.”

Charging speeds will allow Air EVs to charge at up to 50 kW, gaining up to 200 miles of range per hour.

As for the Lucid Gravity, the company’s SUV, it will not require the adapter because of its native NACS port. It gained access to the Supercharger Network in January.

Although Lucid Airs will not be able to charge at the rate of some other vehicles, they do boast some of the best range ratings in the EV industry. Having the luxury of additional charging piles to access will increase the value of the long-range ratings Lucid offers with its vehicles.

Lucid joins several other automakers that have a full lineup of EVs that have access to the Tesla Supercharger Network:

  • Ford
  • Rivian
  • General Motors (Chevrolet, GMC, Cadillac)
  • Volvo
  • Polestar
  • Nissan
  • Mercedes-Benz
  • Hyundai
  • Kia
  • Genesis
  • Honda
  • Acura
  • Aptera

Other brands, like BMW, Audi, Volkswagen, Porsche, and Subaru, are expected to gain access in the near future.

Continue Reading

News

Tesla Robotaxi wins over firm that said it was ‘likely to disappoint’

Tesla Robotaxi recently won over a Wall Street firm that had recently said the platform was “likely to disappoint.”

Published

on

tesla robotaxi app on phone
Credit: Tesla

Tesla Robotaxi recently won over a Wall Street firm that had recently said the platform was “likely to disappoint.” The ride-hailing service has been operating for about a month, and driverless rides have been offered to a small group of people that continues to expand nearly every day.

JPMorgan went to Austin to test the Tesla Robotaxi platform, and it did so just a few weeks after listing Tesla as one of its “six stocks to short” in 2025. Highlighting the loss of the EV tax credit and labeling the Robotaxi initiative as one that was “likely to disappoint,” despite Tesla’s prowess in its self-driving software.

Analyst Ryan Brinkman has been skeptical of Tesla for some time, even stating that the company’s “sky-high valuation” was not in line with other stocks in the Magnificent Seven.

However, a recent visit to Texas that was made by JPMorgan analysts proved that the Robotaxi platform, despite being in its earliest stages, was enough for them to change their tune, at least slightly. The firm gave its props to the Tesla Robotaxi platform in a note by stating it was “certainly solid and felt like a safe ride at all times.”

It’s always nice to hear skeptics report positive experiences, especially as Robotaxi continues to improve and expand.

Tesla has already expanded its geofence for the Robotaxi suite in Austin, picking a very interesting shape for its newest boundaries:

Tesla’s Robotaxi expansion wasn’t a joke, it was a warning to competitors

As Robotaxi expands, Tesla is dealing with competition from Waymo, another self-driving ride-hailing service that is operating in Austin, among other areas. After Tesla’s expansion, which brought its accessible area to a greater size than Waymo’s, it responded by doubling its geofence.

Waymo’s expansion surpassed Tesla’s size considerably, and it seems Tesla is preparing to expand its geofence in the coming weeks.

Waymo responds to Tesla’s Robotaxi expansion in Austin with bold statement

The Robotaxi platform is not yet available to the public, but Tesla has been inviting more people to try it with every passing day. Currently, the map is roughly 42 square miles, but many believe Tesla is able to broaden this by a considerable margin whenever it decides.

Continue Reading

Investor's Corner

Tesla needs to confront these concerns as its ‘wartime CEO’ returns: Wedbush

Tesla will report earnings for Q2 tomorrow. Here’s what Wedbush expects.

Published

on

Credit: Tesla

Tesla (NASDAQ: TSLA) is set to report its earnings for the second quarter of 2025 tomorrow, and although Wall Street firm Wedbush is bullish as the company appears to have its “wartime CEO” back, it is looking for answers to a few concerns investors could have moving forward.

The firm’s lead analyst on Tesla, Dan Ives, has kept a bullish sentiment regarding the stock, even as Musk’s focus seemed to be more on politics and less on the company.

However, Musk has recently returned to his past attitude, which is being completely devoted and dedicated to his companies. He even said he would be sleeping in his office and working seven days a week:


Nevertheless, Ives has continued to push suggestions forward about what Tesla should do, what its potential valuation could be in the coming years with autonomy, and how it will deal with the loss of the EV tax credit.

Tesla preps to expand Robotaxi geofence once again, answering Waymo

These questions are at the forefront of what Ives suggests Tesla should confront on tomorrow’s call, he wrote in a note to investors that was released on Tuesday morning:

“Clearly, losing the EV tax credits with the recent Beltway Bill will be a headwind to Tesla and competitors in the EV landscape looking ahead, and this cash cow will become less of the story (and FCF) in 2026. We would expect some directional guidance on this topic during the conference call. Importantly, we anticipate deliveries globally to rebound in 2H led by some improvement on the key China front with the Model Y refresh a catalyst.”

Ives and Wedbush believe the autonomy could be worth $1 trillion for Tesla, especially as it continues to expand throughout Austin and eventually to other territories.

In the near term, Ives expects Tesla to continue its path of returning to growth:

“While the company has seen significant weakness in China in previous quarters given the rising competitive landscape across EVs, Tesla saw a rebound in June with sales increasing for the first time in eight months reflecting higher demand for its updated Model Y as deliveries in the region are starting to slowly turn a corner with China representing the heart and lungs of the TSLA growth story. Despite seeing more low-cost models enter the market from Chinese OEMs like BYD, Nio, Xpeng, and others, the company’s recent updates to the Model Y spurred increased demand while the accelerated production ramp-up in Shanghai for this refresh cycle reflected TSLA’s ability to meet rising demand in the marquee region. If Musk continues to lead and remain in the driver’s seat at this pace, we believe Tesla is on a path to an accelerated growth path over the coming years with deliveries expected to ramp in the back-half of 2025 following the Model Y refresh cycle.”

Tesla will report earnings tomorrow at market close. Wedbush maintained its ‘Outperform’ rating and held its $500 price target.

Continue Reading

Trending