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SpaceX Starship saved by ‘burst disk’ after Raptor static fire ends badly

For the second time, a Starship Raptor engine test has caused a secondary fire that severed some of SpaceX's control over the rocket. (NASASpaceflight - bocachicalgal)

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Around 7:15 pm local time, SpaceX Starship prototype SN8 fired up one or several Raptor engines for the third time ever, catching onlookers – only expected a dress rehearsal – by surprise. An hour later, CEO Elon Musk revealed that SpaceX had effectively lost control of the rocket.

Unfortunately for SpaceX, this is not the first incident in which a fire led to a loss of Starship control. Back in May 2020, Starship serial number 4 (SN4) – the first full-scale prototype to have a Raptor installed – completed its third successful static fire test. Moments later, a vent line adjacent to the engine section caught fire, burning for a minute or two. Ultimately, likely due to destroyed wiring or plumbing, SpaceX seemingly lost control of SN4 and had to wait a full two days for cryogenic propellant to boil off and evaporate before teams could approach the rocket to inspect, repair, and regain control.

Now, more likely than not, Starship SN8 has suffered a similar – but not identical – failure, cutting some level of control. Elon Musk took to Twitter about an hour after the rocket’s third Raptor static fire, revealing that SpaceX had lose control of Starship’s pneumatics, referring to hydraulic systems needed to operate most of the rocket’s valves. For SN8, that meant nothing but bad news.

As cryogenic liquids (and all things in general) warm up, they expand, taking up more volume. To counteract that never-ending process of cryogenic propellant warming up, boiling, and turning to gas, fresh propellant is almost continually loaded while warmer gas is vented, thus maintaining safe tank pressures. If the ability to vent those gases is lost, the ability to maintain safe pressures goes with it.

As Musk noted above, Starship SN8 thankfully – and unexpectedly – had one or several burst disks installed, referring to single-use mechanical valves designed to open (i.e. burst) above a specific pressure. SN8’s nosecone burst disk did just that, bursting to create an outlet for the pressure building inside the rocket and thus preventing the small nose-based liquid oxygen (LOx) tank from exploding.

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A torrent of molten metal pours from Starship SN8’s engine section after a seemingly successful static fire. (NASASpaceflight – bocachicagal)

Unfortunately, the precursor to Starship losing control is a much less positive story. According to Musk, one of the Raptor engines SN8 ignited may have suffered a significant failure, melting one or more critical engine components. It’s unclear how exactly a seemingly contained engine failure evolved into a total loss of Starship hydraulics but it’s safe to say that redundancy will be added and updated designs will be implemented to ensure that a similar failure doesn’t reoccur.

Notably, both unofficial LabPadre and NASASpaceflight.com livestreams clearly showed Starship quite literally dripping molten metal for more than two minutes after the static fire. Whatever the cause of that extremely hot fire, anything that can continuously melt metal for minutes will have almost assuredly ravaged Starship SN8’s aft and the Raptor engines installed therein. It’s nothing short of miraculous that SN8’s main LOx tank wasn’t breached, as well.

Some 80 minutes after ignition and the resultant Raptor fire, Starship SN8’s nosecone ‘burst disk’ thankfully worked as designed, relieving building pressure and avoiding a far more destructive failure. (NASASpaceflight – bocachicagal)

Ultimately, SN8 will likely need extensive repairs – and one, two, or even three replacement engines – before it can safely restart testing and proceed towards its 15 km (~9.5 mi) launch debut. Additionally, SpaceX’s lack of valve control likely means that the company will have to wait at least 24+ hours before workers can safely return to the launch pad and begin those inspections and repairs.

Update: The roadblock was removed around 11pm local time and SpaceX workers appear to have already returned to the pad, signifying that Starship SN8 has been fully detanked and is safe to approach. Inspections and repairs will likely begin as soon as possible.

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 gamifies Supercharging with new ‘Charging Passport’

It will also include things like badges for special charging spots, among other metrics that will show all of the different places people have traveled to plug in for range.

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Credit: MarcoRP | X

Tesla is gamifying its Supercharging experience by offering a new “Charging Passport,” hoping to add a new layer to the ownership experience.

While it is not part of the Holiday Update, it is rolling out around the same time and offers a handful of cool new features.

Tesla’s Charging Passport will be available within the smartphone app and will give a yearly summary of your charging experience, helping encapsulate your travel for that year.

It will also include things like badges for special charging spots, among other metrics that will show all of the different places people have traveled to plug in for range.

Tesla will include the following metrics within the new Charging Passport option within the Tesla app:

  • Charging badges: Iconic charging badges for visiting places like the Tesla Diner, Oasis Supercharger, etc., Explorer Badge, and more
  • Total Unique Superchargers Visited
  • Total Charging Sessions
  • Total Miles Added during Charging Sessions
  • Top Charging Day
  • Longest Trip
  • Favorite Charging Locations

This will give people a unique way to see their travels throughout the year, and although it is not necessarily something that is needed or adds any genuine value, it is something that many owners will like to look back on. After all, things like Spotify Wrapped and Apple Music Replay have been a great way for people to see what music they listened to throughout the year.

This is essentially Tesla’s version of that.

With a handful of unique Superchargers already active, Tesla is also building some new ones, like a UFO-inspired location in New Mexico, near Roswell.

Tesla is building a new UFO-inspired Supercharger in the heart of Alien country

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Tesla launches its coolest gift idea ever just a few weeks after it was announced

“Gift one month of Full Self-Driving (Supervised), which allows the vehicle to drive itself almost anywhere with minimal intervention.”

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Credit: Tesla

Tesla has launched its coolest gift idea ever, just a few weeks after it was announced.

Tesla is now giving owners the opportunity to gift Full Self-Driving for one month to friends or family through a new gifting program that was suggested to the company last month.

The program will enable people to send a fellow Tesla owner one month of the company’s semi-autonomous driving software, helping them to experience the Full Self-Driving suite and potentially help Tesla gain them as a subscriber of the program, or even an outright purchase.

Tesla has officially launched the program on its Shop. Sending one month of Full Self-Driving costs $112:

“Gift one month of Full Self-Driving (Supervised), which allows the vehicle to drive itself almost anywhere with minimal intervention. All sales are final. Can only be purchased and redeemed in the U.S. This gift card is valued at $112.00 and is intended to cover the price of one month of FSD (Supervised), including up to 13% sales tax. It is not guaranteed to cover the full monthly price if pricing or tax rates change. This gift card can be stored in Tesla Wallet and redeemed toward FSD (Supervised) or any other Tesla product or service that accepts gift card payments.”

Tesla has done a great job of expanding Full Self-Driving access over the past few years, especially by offering things like the Subscription program, free trials through referrals, and now this gift card program.

Gifting Full Self-Driving is another iteration of Tesla’s “butts in seats” strategy, which is its belief that it can flip consumers to its vehicles and products by simply letting people experience them.

There is also a reason behind pushing Full Self-Driving so hard, and it has to do with CEO Elon Musk’s compensation package. One tranche requires Musk to achieve a certain number of active paid Full Self-Driving subscriptions.

More people who try the suite are likely to pay for it over the long term.

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Tesla expands Robotaxi app access once again, this time on a global scale

Tesla said recently it plans to launch Robotaxi in Miami, Houston, Las Vegas, Phoenix, and Dallas.

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Credit: Grok

Tesla has expanded Robotaxi app access once again, but this time, it’s on a much broader scale as the company is offering the opportunity for those outside of North America to download the app.

Tesla Robotaxi is the company’s early-stage ride-hailing platform that is active in Texas, California, and Arizona, with more expansion within the United States planned for the near future.

Tesla said recently it plans to launch Robotaxi in Miami, Houston, Las Vegas, Phoenix, and Dallas.

The platform has massive potential, and Tesla is leaning on it to be a major contributor to even more disruption in the passenger transportation industry. So far, it has driven over 550,000 miles in total, with the vast majority of this coming from the Bay Area and Austin.

First Look at Tesla’s Robotaxi App: features, design, and more

However, Tesla is focusing primarily on rapid expansion, but most of this is reliant on the company’s ability to gain regulatory permission to operate the platform in various regions. The expansion plans go well outside of the U.S., as the company expanded the ability to download the app to more regions this past weekend.

So far, these are the areas it is available to download in:

  • Japan
  • Thailand
  • Hong Kong
  • South Korea
  • Australia
  • Taiwan
  • Macau
  • New Zealand
  • Mexico
  • U.S.
  • Canada

Right now, while Tesla is focusing primarily on expansion, it is also working on other goals that have to do with making it more widely available to customers who want to grab a ride from a driverless vehicle.

One of the biggest goals it has is to eliminate safety monitors from its vehicles, which it currently utilizes in Austin in the passenger’s seat and in the driver’s seat in the Bay Area.

A few weeks ago, Tesla started implementing a new in-cabin data-sharing system, which will help support teams assist riders without anyone in the front of the car.

Tesla takes a step towards removal of Robotaxi service’s safety drivers

As Robotaxi expands into more regions, Tesla stands to gain tremendously through the deployment of the Full Self-Driving suite for personal cars, as well as driverless Robotaxis for those who are just hailing rides.

Things have gone well for Tesla in the early stages of the Robotaxi program, but expansion will truly be the test of how things operate going forward. Navigating local traffic laws and gaining approval from a regulatory standpoint will be the biggest hurdle to jump.

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