News
SpaceX Starship stacked with ballast for hop test debut
SpaceX has installed a custom-built ballast atop its fourth full-scale Starship prototype, a sign that the company is rapidly approaching the ship’s first Starhopper-style hop test.
Although CEO Elon Musk officially “redirected” SpaceX’s resources away from Starship’s first flight and towards Crew Dragon’s NASA astronaut launch debut, the company continues to work around the clock to ready Starship SN4 for the program’s biggest test yet. Designed with the goal of creating a fully-reusable, ultra-capable launch vehicle that is unprecedentedly affordable, SpaceX’s Starship spacecraft and Super Heavy booster have made impressive progress over the last 12 or so months.
In July and August 2019, Starhopper – a low-fidelity testbed and proof of concept – successfully performed two untethered hop tests, ultimately flying more than 150m (~500 ft) above ground before safely touching down. Three months later, the first full-scale Starship prototype was destroyed almost immediately after its first pressure test began, a failure that lead SpaceX to expedite factory upgrades. Just six months later, SpaceX has completed multiple successful tests, including pressure tests that pushed beyond the pressures needed for safe human spaceflight, several full wet dress rehearsals (WDRs) with live propellant, and three Raptor engine static fires. In fewer words, Starship is ready for its next big test: flight.
However, Starship SN4 currently has just one Raptor engine installed and will remain in that configuration for its inaugural hop, expected to reach a maximum altitude identical to Starhopper (150m/500ft). The odd configuration means that the rocket will be propelled by asymmetric thrust, as Starship’s ‘thrust puck’ engine section is designed to hold three Raptor engines in a triangular formation. Raptor is capable of producing up to 200 metric tons (~440,000 lbf) of thrust with an unclear level of throttle control (likely mediocre according to comments made by Elon Musk).
Impressively, although it might seem reasonable to assume that Starship SN4 is about as heavy as the ~120 ton Starhopper, the clear and present need to install substantial ballast suggests otherwise. Combined with comments made during SN4’s April 2020 transport from factory to launch site, it appears that even SpaceX’s early Starship engine sections weigh just 50-60 metric tons (110,000-125,000 lb) empty. That weight doesn’t account for the flaps, heat shield, nose section, or many other heavy components that orbital Starships will eventually need but is still impressive.
That impressive weight reduction, Raptor’s inability to safely throttle low, and the FAA’s lack of interest in dozens (up to hundreds) of tons of explosive propellant flying above or around populated areas poses its own challenges for the first full-scale Starship flight. The addition of ballast helpfully solves (or at least alleviates) several of those issues. Notably, ballast can prevent SpaceX from having to fuel Starship SN4 with dozens of extra tons of explosive propellant to counteract the high thrust of its single engine and permit a safe launch and landing.
At the same time, if Starship SN4’s wet weight is reduced by carrying less propellant during its first flight, that actually exacerbates the problem of Raptor’s small throttle range, as a lighter ship would be much harder to manage as the engine rapidly burns propellant and thus loses mass. With ballast, Raptor won’t have to throttle as low as it would otherwise have to to ensure a gentle rate of deceleration. Built out of sheet steel and two spare rolls of the same steel used to form Starship rings, Starship SN4’s new ballast likely increases its dry mass by some 50% or more (25+ metric tons).
Pending Crew Dragon’s inaugural astronaut launch, now scheduled no earlier than 3:22 pm EDT (19:22 UTC), May 30th after weather delayed the first May 27th launch attempt, Starship SN4 has no testing periods on the calendar at the moment. Speaking around May 23rd, Musk stated that the ship was likely at least a “few weeks” away from its flight debut, suggesting that the ship will perform another static fire test to prepare for its first hop as early as next week. Stay tuned for updates as SpaceX’s works towards two very exciting Crew Dragon and Starship milestones.
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Elon Musk
Elon Musk gives key update on plans for Tesla Diner outside of LA
More Tesla Supercharger Diners are on the way, Elon Musk says, as long as the initial one is successful.
Elon Musk has given a key update on its plans for the Tesla Supercharger Diner, as the first location in Los Angeles is set to open today, July 21.
The idea for the Supercharger Diner, which resembles a 50s-style eatery with elements of futuristic technology, is seven years in the making. Many wondered whether Tesla would expand its idea for a Supercharger restaurant outside of LA, and now we have an answer directly from Musk.
Elon Musk confirms awesome new features at Tesla Diner Supercharger
The Tesla CEO said that the company will establish these types of experiences “in major cities around the world, as well as at Supercharger sites on long distance routes.”
If our retro-futuristic diner turns out well, which I think it will, @Tesla will establish these in major cities around the world, as well as at Supercharger sites on long distance routes.
An island of good food, good vibes & entertainment, all while Supercharging! https://t.co/zmbv6GfqKf
— Elon Musk (@elonmusk) July 21, 2025
The Supercharger Diner has plenty of ways to draw in customers, and although the food and merchandise sold at the location will not be a major contributor to Tesla’s balance sheet, where investors want to see it, it could pay off in other ways.
The Diner is not exclusive to Tesla owners, so those who drive gas cars can still stop in for a burger, fries, and a shake while roaming around Los Angeles. The features of the Diner, however, do require a Tesla vehicle.
In-car ordering and movie screens syncing to the center touchscreen are two things that Tesla owners will enjoy that other drivers will not. These might be trivial, but the experience on its own could be a way that some consider buying a Tesla.
It might sound crazy that a singular diner experience would flip someone to buy a car, but it’s not the most outlandish thing we’ve ever come across.
The question is where Tesla will plan to build these Supercharger Diners. Musk has already indicated that Starbase, Texas, will be one location, which fits with one of his other companies, SpaceX.
Austin could be an ideal location, but New York, Miami, Washington D.C., Boston, and plenty of other popular metro areas within the U.S. could see their own diners in the coming years.
Investor's Corner
Tesla analyst says this stock concern is overblown while maintaining $400 PT
Tesla reported $2.763 billion in regulatory credit profits last year.
One Tesla analyst is saying that a major stock concern that has been discussed as the Trump administration aims to eliminate many financial crutches for EV and sustainable industries is overblown.
As the White House continues to put an emphasis on natural gas, coal, and other fossil fuels, investors are concerned that high-powered sustainability stocks like Tesla stand to take big hits over the coming years.
However, Piper Sandler analyst Alexander Potter believes it is just the opposite, as a new note to investors released on Monday says that the situation, especially regarding regulatory credits, is “not as bad as you think.”
Tesla stacked emissions credits in 2023, while others posted deficits
There have been many things during the Trump administration so far that have led some investors to consider divesting from Tesla altogether. Many people have shied away due to concerns over demand, as the $7,500 new EV tax credit and $4,000 used EV tax credit will bow out at the end of Q3.
The Trump White House could also do away with emissions credits, which aim to give automakers a threshold of emissions to encourage EV production and cleaner powertrains. Companies that cannot meet this threshold can buy credits from other companies, and Tesla has benefitted from this program immensely over the past few years.
As the Trump administration considers eliminating this program, investors are concerned that it could significantly impact Tesla’s balance sheet. Potter believes the issue is overblown:
“We frequently receive questions about Tesla’s regulatory credits, and for good reason: the company received ~$3.5B in ‘free money’ last year, representing roughly 100% of FY24 free cash flow. So it’s fair to ask: will recent regulatory changes threaten Tesla’s earnings outlook? In short, we think the answer is no, at least not in 2025. We think that while it’s true that the U.S. government is committed to rescinding financial support for the EV and battery industries, Tesla will still book around $3B in credits this year, followed by $2.3B in 2026. This latter figure represents a modest reduction vs. our previous expectation…in our view, there’s no need for drastic estimate revisions. Note that it’s difficult to forecast the financial impact of regulatory credits — even Tesla itself struggles with this — but the attached analysis represents an honest effort.”
Tesla’s regulatory credit profitability by year is:
- 2020: $1.58 billion
- 2021: $1.465 billion
- 2022: $1.776 billion
- 2023: $1.79 billion
- 2024: $2.763 billion
Potter and Piper Sandler maintained an ‘Overweight’ rating on the stock, and kept their $400 price target.
Tesla shares are trading at $329.63 at 11:39 a.m. on the East Coast.
News
Tesla rolls out update to Robotaxi service that makes pickups so much better
The update was confirmed by CEO Elon Musk in a post on social media platform X.
Tesla has rolled out a minor update to its Robotaxi service that will likely make the driverless ride-hailing system notably better and more convenient for consumers. The update was confirmed by CEO Elon Musk in a post on social media platform X.
Robotaxi service updates
The Robotaxi update was observed by users of the driverless ride-hailing service over the weekend. As observed by Tesla enthusiast Owen Sparks, the Austin Robotaxi fleet no longer strictly navigates to the pickup point listed on the app. Instead, the Robotaxis now stop in the exact location of a user’s phone.
Elon Musk confirmed the update, noting in a post on X that the change was an upgrade to the service. It’s a reactively minor update in the grand scheme of things, but it should make the Robotaxi service feel more organic and humanlike.
Driverless taxis
Tesla’s Robotaxi service in Austin has been receiving good reviews from users since it was launched, with many praising the vehicles for their cautious and humanlike behavior. Some users on social media even noted that Tesla’s Robotaxis feel safer on the road than cars from services like Uber, which are manually driven.
Tesla’s minor updates to its Robotaxi service are expected to make the customer experience of the driverless ride-hailing service more refined. By doing so, Tesla could ease customers into its service, even if only a fraction of ride-hailing users are familiar with fully autonomous cars. With this in mind, even small updates like picking up customers based on their specific phone location will likely go a long way towards making Tesla’s Robotaxis more accepted by the general public.
Elon Musk gives key update on plans for Tesla Diner outside of LA
Tesla analyst says this stock concern is overblown while maintaining $400 PT
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