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What’s causing SpaceX’s Falcon Heavy delays?

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Although uncertainty in the schedule remains, SpaceX’s Falcon Heavy rocket appears to be nearly ready for its first engine ignition test (called a ‘static fire’) sometime within the next week or so.

An attempt at 1 PM EST today, January 16, was canceled for unspecified reasons, although Kennedy Space Center reportedly maintained the usual roadblock to prevent vehicles from driving past, implying that SpaceX still intends to conduct propellant loading tests with Falcon Heavy. It was noted earlier this morning by spaceflight journalist Chris Bergin that things were “a bit too quiet” if a test was indeed planned for today, and his intuition appears to have been correct. It still remains the case that Falcon Heavy is an experimental and untested rocket to an extent, and these delays are to be expected as SpaceX works out the inevitable kinks and bugs that arise during the extensive testing big launch vehicle has been and is still being put through.

Due to range requirements in support of an upcoming launch of the United Launch Alliance’s (ULA) Atlas 5 rocket, currently NET Thursday, SpaceX has postponed the static fire of Falcon Heavy without a replacement date. It is unlikely that another attempt will occur before the upcoming weekend, but SpaceX should have at least a solid week of uninterrupted range support once ULA’s launch occurs, hopefully without delay. Godspeed to ULA, in the meantime.

The crazy complexity of rocketry

Most recently, and perhaps somewhat related to Falcon Heavy’s static fire delays, SpaceX completed as many as two complete wet dress rehearsals (WDRs), which saw Falcon Heavy topped off with full tanks of its cryogenic (super cool) liquid oxygen (LOX) and rocket-grade jet fuel (RP-1). In essence, the rocket became equivalent to several hundred tons of carefully stabilized explosive. Nominally, these rehearsals appear entirely uneventful to an outside observer, with little more than ice formation and the occasional bursts of propellant tank vents to suggest that something important is occurring. However, anomalies like the failure of Falcon 9 during the Amos-6 static fire provide a staggering demonstration of just how explosive and sensitive a rocket’s fuel is, and Falcon Heavy has approximately three times the fuel capacity of Falcon 9. Empty, Falcon 9’s mass has been estimated to be around 30 metric tons, a minuscule amount of structure in the face of the more than 500 metric tons of propellant the vehicle carries at liftoff.

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These propellant loading tests can also be challenging for reasons aside from their highly explosive nature. Due to basic realities of the physical nature of metal, the predominate ingredient for Falcon 9’s load-bearing structures, metallic structures shrink under extreme cold (and expand under heating). In the case of Falcon 9’s massive 45 meters (150 foot) tall first stage, the scale of this contraction can be on the order of several inches or more, particularly given SpaceX’s predilection towards cooling their propellant as much as possible to increase its energy density. For Falcon 9, these issues (thermodynamic loads) are less severe. However, add in three relatively different first stage boosters linked together with several extremely strong supports at both their tops and bottoms and that dynamic loading can become a fickle beast. The expansion or compression of materials due to temperature changes can create absolutely astounding amounts of pressure – if you’ve ever forgotten a glass bottled drink in the freezer and discovered it violently exploded at some future point, you’ll have experienced this yourself.

With several inches of freedom and the possibility that each Falcon Heavy booster might contract or expand slightly differently, these forces could understandably wreak havoc with the high precision necessary for the huge rocket to properly connect with the launch pad’s ground systems that transmit propellant, fluids, and telemetry back and forth. Information from two reliable Kennedy Space Center sources experienced with the reality of operating rockets, as well as NASASpaceflight.com, suggested that issues with dynamic loads (such as those created by thermal contraction/expansion) are a likely explanation for the delays, further evidenced by their observations that much of the pad crew’s attention appeared to be focused at the base of Transporter/Erector/Launcher (TEL). The TEL base hosts the clamps that hold the rocket down during static fires and launches, as well as the Tail Service Masts (TSMs) that connect with the Falcon 9/Heavy to transport propellant and data to the first stage(s). These connection points are both relatively tiny, mechanically sensitive, and absolutely critical for the successful operation of the rocket, and thus are a logical point of failure in the event of off-nominal or unpredicted levels of dynamic stresses.

Test, launch, land, repeat.

All things considered, these difficulties demonstrate that even after months (even years) of relentless modeling, testing, remodeling, and retesting, rockets (and especially huge rockets like Falcon Heavy) are immensely complex, and even tiny mistakes can lead the vehicle to stray from its expected behavior. Quite simply, the reality of engineering only truly comes into play once hardware is fully in the loop, and it’s in this state that SpaceX has demonstrated again and again a distinct and elegant ability to learn from their hardware, rather than attempt to salve uncertainty with a neurotic and counterproductive level of statistical analysis, modelling, and documentation. The agile launch company still dabbles in those aspects when beneficial or necessary, but testing comes first in its importance.

The conclusion here, then, is that Falcon Heavy’s delays betray this aspect of SpaceX – a launch company that loves its fans, but also understands the need for cautious testing when it comes to new and untried rocket hardware. Whether Falcon Heavy succeeds or fails, SpaceX will learn from the proceedings, and they will be better off for it (although maybe less so financially…).

Follow along live as launch photographer Tom Cross and I cover these exciting proceedings as close to live as possible.

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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 integrates Grok Bot into its vehicles for the ultimate personal assistant

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Credit: Grok

Tesla has expanded Grok from an in-car chatbot into a hands-free work assistant. On September 22, Tesla officially launched Grok Bot capability, confirming that drivers can now manage email, calendars, files, chats, and tasks by voice and then hand more ambitious errands to the AI-fueled productivity cheat code.

Grok itself is built by xAI. The new car features split into two layers: Connectors link Grok to outside accounts. Grok Bot, currently limited to SuperGrok Heavy subscribers, can complete multi-step tasks such as placing a usual coffee order, booking a reservation, or scheduling an appointment. It truly puts the driver in a nearly complete hands-free driving and productivity setting, with ironically the only task truly requiring your hands being to touch the “Start Self-Driving” button.

We were granted access to Grok Bot’s Tesla integration a few weeks back, and we’ve been able to do a handful of things with it. On a handful of occasions, we’ve used it to order food and have it ready for pickup slightly later into the evening; we’ve managed to pick up groceries after a day of errands with Grok Bot, and outside of the car, it’s helped with budgeting and even my fantasy football draft.

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Tesla shows another way to utilize it: in their demo, a driver says “Hey Grok,” asks the assistant to check an inbox, and hears that a message concerns a weekend reservation. Grok then scans the calendar, reports no conflicts, and confirms the Tahoe trip is clear. It can also add check-in details to a road-trip itinerary. The point is not novelty chat. It is keeping eyes on the road, or on Full Self-Driving, while the car handles the paperwork of a trip:

This Grok rollout is not a gadget add-on as much as it is Tesla’s thesis in software form: the car should stop being a machine you operate and start being a room you occupy.

Connectors and Grok Bot treat the cabin as an office that happens to move, and that has truly been Tesla’s intention for years now. The car has slowly become an extension of a home more than a vehicle. Inbox, calendar, groceries, takeout, and reservations become voice work, not dashboard chores that you need to do before you get in your car.

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Responsibility shifts from the driver to the stack, and as many Tesla owners rely on FSD for travel, Grok Bot now handles the monotony of dinner reservations or appointments.

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Elon Musk

X changed how everyone gets paid, and this lawsuit shows why

X sued a Bitcoin account network over fake payouts as its creator pay model shifts

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Elon Musk’s X has taken a Bitcoin-focused engagement ring to court, and the case doubles as a receipt for how differently the platform pays creators today. The company filed suit in the High Court of England and Wales against Vivek Kumar Sen and Zamyang Sherpa, alleging the pair ran six accounts, including @Vivek4real_, @Bitcoin_Teddy and @TrendingBitcoin, as one coordinated operation to fake the kind of engagement that used to translate directly into money.

According to the filing, first reported by Gizmodo, the accounts posted near identical “BREAKING” crypto headlines seconds apart, in one case 11 seconds, then had three more handles like, reply to and repost the material to manufacture what X called “a false appearance of genuine, human communication and interaction.” X says the scheme pulled in at least £207,384, about $278,000, and pegs its own investigation and remediation costs at another £75,000. The accounts were suspended August 18. X general counsel James Burnham announced the case on X last weekend, writing that the company “will act forcefully to protect our platform and the earnings of genuine creators.” Musk’s own reaction, posted shortly after, was three words: “Don’t mess with 𝕏.”

The timing lines up with a a recent update to how X pays its creators. The program these accounts allegedly gamed, Creator Revenue Sharing, launched in mid 2023 and paid out based on how much a post got engaged with. Originality was never part of the formula, which is exactly how the platform ended up flooded with recycled clips, copy pasted “BREAKING” posts and replies engineered purely to farm reactions from paying subscribers.

X tried patching the model more than once, including an April cut to aggregator payouts and a March regional weighting change that Musk personally paused hours after it was announced. X retired Creator Revenue Sharing for good on September 7 and opened its replacement, Original Content Rewards, the next day.

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The new math is stricter. Payouts now come only from qualified impressions, meaning unique Home Timeline views from Premium subscribers where at least half the post is visible, and replies no longer count toward eligibility at all. Copied posts, reuploaded media and reposts without meaningful changes are explicitly excluded. Allegra Jacchia, senior product manager for Creators at SpaceXAI, which now runs X’s product and AI work following xAI’s acquisition of the platform, put it bluntly, saying the goal is to reward creators who bring original ideas and perspective, “not those who have become best at gaming the system.”

Read that way, the lawsuit isn’t really about six crypto accounts. It’s X putting a dollar figure on what the old incentive structure cost, then suing to collect it right as the new one goes live. For live updates on how the case and the new rewards program shake out, follow @Teslarati on X.

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Did Tesla make the perfect car for families? Tesla Model Y L Full Review

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tesla model y l in cosmic grey
Credit: TESLARATI

Last week, Tesla sent me the Model Y L for five days to test, assess, and enjoy for journalistic purposes. It’s always a treat when I get any media vehicle, and I’ve had the pleasure of working with Tesla and Ford for hands-on reviews of their products.

This one was exceptionally exciting for a few reasons: first, because it is the car I own, but bigger, so I was really excited to see if that extra space was worth it; and second, because my Fiancée (we’re down to just 18 days ’til she’s officially my wife!!!) and I plan to fill a car up with kids in the near future, so it was really nice to have a trial with a car that would potentially be in our driveway in a few years.

I did a full 10-minute video review of the Model Y L, which I will post at the bottom of this more condensed written version. If you prefer to watch a review, go ahead and skip to the bottom for that.

For those who prefer the writing, I’ll break down the big things about the Model Y L that I noticed, focusing on the big addition/difference that this car has from the Model Y: the third row. Tesla also added small-but-mighty changes to the Y L that I really wish were on my Model Y Premium, so I’ll be sure to mention those as well.

What Makes It Different from the Model Y?

tesla model y l in cosmic grey

Credit: TESLARATI

The first thing to note is that the interior of this vehicle, from the front row, is generally the same. It truly does feel like you’re in the same exact car with a slightly different seating layout. Of course, Tesla interiors do feel this way, at least with the Model 3 and Model Y, but there are no drastic differences between the Model Y L and the Model Y from the front row.

This should be expected, so definitely do not go into it thinking you’ll know you’re in a different car. It is a very similar experience to the Model Y.

Tesla Model Y L: new features that make it better than the standard Model Y

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The true differences come from the back two rows. The only true difference from the front is the addition of a new Dynamics Feature that falls under the “Ride & Handling Priority” menu, which now allows you to adjust the suspension damping to prioritize a comfortable ride for everyone or one that is noticeably better from the rear two rows. In terms of ride comfort, the front rows definitely feel the impact of this; it is a noticeable difference and much stiffer in the driver’s seat with this setting turned to prioritize the rear occupants.

There are also a series of small improvements, like the rear taillight is now up toward the spoiler, which must be a strategy for making the rear glass actually useful in the Y L compared to the regular Y.

Some other small changes are the addition of small magnets for the sub-trunk lid, which is a great addition and something I’d like to do in my Model Y; it sounds to me as if the Model Y L liftgate motor is less whiny than the one in my Model Y; and all three rows of climate are controllable from the front touchscreen.

I talk about them in a short video here:

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Second and Third-Row Legroom

The major feature of the Model Y L is the third row, and Tesla did a great job of making it spacious enough for more than just your nine-year-old nephew. It actually does have a suitable amount of legroom for adults, but it is dependent on how tall the people are in the first- and second-row seats in front of you.

This is where I caught some slack from those who have also sat in the Model Y L and believe there is enough room for anyone of any height. I certainly believe that those who are not complainers could sit back there for a multiple-hour drive and not complain. I would enjoy sitting in the back row because I think it is comfortable; the vents for air are perfectly positioned on the C pillars for maximum comfort, and I found that there was enough room back there for me. I’m 5′ 8″, so I’m definitely not tall. However, I found that I had more than enough legroom:

Tesla Model Y L third-row legroom

Credit: TESLARATI

The picture above is where my Fiancèe could sit comfortably in the second row in front of me, and she is 5′ 1″. There is a lot of give and take with these seats, and I believe most groups could make it work. She was comfortable in the second-row seat in front in this position, and as you can see, I have plenty of room. She could easily come back a few inches, and I’d still be comfortable.

This is where I think people would truly benefit from seeing what the space in this car looks like for themselves. To me, I found it more than suitable for a group of friends to go out in and for everyone to be comfortable. There might be some strategy to it if you have some taller friends, but it’s definitely doable.

Overall, the space in the Y L in the back two rows is great: the second-row Captain’s Chairs have mechanical armrests that go down automatically when you exit the car, and come back up on their own when you return. The second row also has ventilated seats; you’ll only have the heat option in the third row.

tesla model y l interior from driver's seat

Credit: TESLARATI

Overall Thoughts

It was really a great five days with the Model Y L, and I do believe that this is a great car for families. I do not believe it is the perfect one. It is really an excellent option for those who can make do with what is truly a compact crossover stretched out to make way for a third row. However, I think that more families simply want something large, like Tahoe or Expedition large, and the Model Y L does not necessarily answer that call.

I think it is more than reasonable for a family of six to have this car and make it work. It is safe, it has Full Self-Driving, which I believe will be a non-negotiable for me moving forward in car buying; and it is relatively affordable, with the Launch Edition coming in at a price of $61,990 before options. Not going to a gas station for the past year has really been a lifesaver for me, especially with home charging saving us so much money.

Tesla will need to have an answer for the families that want something like a Cyber SUV or simply something that qualifies as a full-size SUV. I just truly do not think that every family will see this as enough space, and I think that’s understandable. If someone were to want to take an overnight trip with their four kids, I don’t know if it would be the easiest cargo situation because without that third row folded down, that trunk space is confined to just 14.8 cubic feet. I couldn’t take four kids and a wife to Ocean City for a week with using only the trunk space. We’d likely have to get creative, and I think that’s what many families want to avoid.

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For comparison’s sake, a Tahoe offers 25.5 cubic feet of trunk space, which is still tight, but much more manageable and forgiving.

With all that being said, the Model Y L is still a great option and I’d be willing to see past the cargo issues because of FSD and the safety of Tesla vehicles overall. For our full review, check out the video below:

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