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Here’s why SpaceX’s latest Starship rocket exploded after touchdown

CEO Elon Musk has taken to Twitter to explain why Starship SN10 exploded after a hard landing. (NASASpaceflight - bocachicagal)

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In what has become a bit of a tradition, CEO Elon Musk has taken to Twitter again to explain the outcome of SpaceX’s latest Starship launch and landing attempt in more detail.

This time around, Musk’s debriefing comes after Starship serial number 10 (SN10) briefly became the first prototype of its kind to land in one piece – an extremely encouraging milestone for SpaceX. Less than 15 minutes later, though, an uncontrolled fire somehow breached the rocket’s stainless steel propellant tanks, resulting in a violent depressurization and explosion that tore Starship SN10 to pieces.

SN10’s momentarily successful landing came less than 30 days after Starship SN9’s own launch and landing attempt, which debuted a quick-fix design change meant to sidestep a different issue that caused Starship SN8 to fail shortly before touchdown last December. As it turns out, that design change – which SN9 never really had the chance to test – may have been Starship SN10’s downfall.

Starships must perform highly unusual maneuvers during their skydiver-style approach to atmospheric descent and the aggressive flip required to transition from that belly-down attitude into a propulsive vertical landing configuration. To enable those acrobatics, Starships need secondary ‘header’ tanks that permit the high-pressure storage of landing propellant.

Instead of having to maintain Starship’s building-sized main tanks at high pressures, header tanks make it far easier to safely store and feed propellant to Raptor engines. Most importantly, they help avoid prevent fuel flow interruptions or bubbles that can easily damage or destroy high-performance liquid rocket engines like Starship’s Raptors.

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After Starship SN8’s last-second landing failure on December 8th, SpaceX concluded that low pressure in the liquid methane header tank was largely to blame. Normally pressurized with methane gas in a cutting-edge process called autogenous pressurization, SpaceX ultimately seemed to think that that process was the root cause and responded by adding an alternative helium pressurization workaround at the last second. Long-term, helium is not a viable solution as it’s virtually impossible to resupply in-situ (on the fly), meaning that any Starships reliant upon helium would find themselves stranded on the Moon or Mars.

Starship SN9 ultimately failed a few seconds earlier than Starship SN8 when one of its Raptor engines failed to ignite, precluding a true flight test of the helium pressurization fix. As it turns out, Musk believes that that very fix may have doomed Starship SN10.

As Starship SN10 forged ahead past the points of failure that killed SN8 and SN9, the SpaceX CEO thinks that one or more of the vehicle’s three Raptor engines began to ingest some of that helium pressurant as they emptied their methane header tank. As a result, engine thrust would have dropped below expected values, preventing Starship SN10 from slowing down for a truly soft landing. Instead, the Starship hit the ground traveling a solid 25 mph (~10 m/s), obliterating its tiny landing legs and damaging its skirt section.

It’s unclear if that hard landing was the sole cause of SN10’s subsequent explosion, as both official and unofficial webcasts of the launch appear to show a major fire starting well before touchdown and continuing to burn up to the point of failure. Regardless, Musk says that “multiple fixes” are in work for Starship SN11, which is currently speeding towards a launch attempt as early as next week. It remains to be seen if those planned “fixes” will delay SN11’s launch plans.

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 takes huge step with Cybercab in new spotting

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Credit: Met God in Wilderness | YouTube

Tesla has taken a huge step forward with its Cybercab project, as the vehicle has been spotted on the Fremont Test Track for the first time.

Typically, when cars are spotted on the Fremont Test Track, it means Tesla has begun advancing the development of that specific project. With Cybercab production slated for 2026, it seems Tesla is ready to get things moving.

The Cybercab was unveiled one year ago tomorrow, at the “We, Robot” event in Los Angeles.

Tesla Robotaxi Cybercab: Seats, price, special features, release date, and more

Tesla has been hoping to get Cybercab production started in early 2026. With a few months until then, the program has taken some leaps, including the recent start of crash testing of the vehicle at the Fremont Factory in Northern California.

Some of these units have made their way to Gigafactory Texas at Tesla’s crash testing facility:

Now, it has taken another step as Tesla has officially started testing the vehicle at the Fremont Test Track:

Here’s when vehicles in Tesla’s lineup were first spotted on the Fremont Test Track and then launched:

Vehicle
First Spotted on Fremont Test Track
Launch Date (Production Start/First Deliveries)
Model Y
December 12, 2019
January 2020
Tesla Semi
March 8, 2021
December 1, 2022 (Limited to pilot program participants)
Cybertruck
December 10, 2021
November 2023
Cybercab
October 9, 2025
Early 2026

Timeframes for when Tesla vehicles hit the Fremont Test Track and when their production and deliveries begin certainly vary.

However, the Cybercab being spotted marks a significant step forward for Tesla, as it indicates the company is nearing a major milestone in production, whether for deliveries or on-road testing.

It does seem as if Tesla could employ the Cybercab for its Robotaxi program in Austin, Texas, and Northern California.

With more markets expected to launch Robotaxi rides soon, it could be a formidable challenge for the new vehicle, especially if Tesla can initiate rides without a Safety Monitor.

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Chevy answers Tesla’s new ‘Standard’ offerings with an actually affordable EV

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Credit: KilowattStation | X

Chevy answered Tesla’s new Standard Model 3 and Model Y offerings with its second-generation Bolt EV, a car that actually appeals to those who were looking for affordability.

Earlier this week, Tesla unveiled the Model 3 and Model Y Standard, two stripped-down versions of the cars of the same name it already offers. The Long Range versions are now labeled as “Premium,” while the Performance configurations stand alone.

Tesla launches two new affordable models with ‘Standard’ Model 3, Y offerings

However, many people were sort of upset with what Tesla came to market with. For well over a year, it has been transparent that it was planning to develop affordable models, and this year, it was forced to take action to counter the loss of the $7,500 EV tax credit.

The Model 3 Standard starts at $36,990, while the Model Y Standard comes in at $39,990. While these are cheaper than the company’s Premium offerings, many fans said that Tesla missed the mark with the pricing, as these numbers are not necessarily “affordable.”

At the very least, they will likely miss the mark in helping Tesla regain annual growth rates for its deliveries. Tesla will likely rely on its “unboxed process,” which will be used to manufacture the Cybercab and potentially other affordable models in the future. These will be priced at below $30,000.

Other carmakers are making their moves and were able to undercut Tesla’s new Standard offerings, Chevrolet being one of them.

This week, the company launched its second-gen Bolt EV, which starts at just $28,995.

Here are the full specs:

  • 65 kWh LFP battery
  • 255 miles of range (EPA estimated)
  • Native NACS port for Tesla Supercharger accessibility without an adapter
  • Up to 150 kW charging speed
  • Bidirectional power of 9.6 kW
  • Front-Wheel-Drive
  • 10-80% charging in just 26 minutes
  • No Apple CarPlay or Android Auto
  • SuperCruise capable
  • 11.3″ touchscreen, 11″ digital gauge cluster
  • 16 cubic feet of cargo capacity
  • Other Trims
    • RS – $32,000
    • Base LT – $28,995
  • Deliveries begin in early 2026

Let’s be frank: Tesla fans are unlikely to bat an eye at other OEM offerings. However, first-time EV buyers might be looking for something more price accessible, so vehicles under $30,000 are where they will look first, at least for most people.

If money isn’t an option, people will consider spending a minimum of $37,000 on a new vehicle, especially an EV, as a first-time owner.

The Bolt EV could be something that does well, especially considering its one of only a handful of EVs that are priced at around $30,000 brand new in the U.S.

The others are:

  • Nissan Leaf S ($28,140)
  • Mini Cooper SE ($30,900)
  • Fiat 500e ($32,500)

While these cars are priced at around $30,000 and are affordable, they each offer minimal range ratings. The Nissan Leaf S and Fiat 500e have just 149 miles, while the Mini Cooper SE has 114 miles.

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Tesla Model S makes TIME’s list of Best Inventions

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(Credit: Tesla)

Tesla’s flagship sedan, the Model S, has officially been named one of TIME Magazine’s Best Inventions of the 2000s. It joins its sibling, the Model 3, which made the list in 2017.

The Model S is among the most crucial developments in the automotive industry in the last century.

Just as the Ford Model T made its mark on passenger transportation, becoming the first combustion engine vehicle to be successfully developed and marketed at a time when horse and buggy were the preferred mode of transportation, the Model S revolutionized things a step further.

Although it was not the first EV to be developed, the Tesla Model S was the EV that put EVs on the map. In 2012, TIME recognized the Model S as a piece of technology that could truly transform the car industry.

The publication wrote:

“This electric four-door sedan has the lines of a Jaguar, the ability to zip for 265 miles (426 km) on one charge—that’s the equivalent of 89 m.p.g. (2.6 L/100 km)—and touchscreen controls for everything from GPS navigation to adjusting the suspension.”

Looking back, TIME was right on. The Tesla Model S was truly a marvel for its time, and it, along with the OG 2008 Roadster, can be seen as the first two EVs to push electrification to the mainstream.

As TIME described this year, the Model S “proved to be a game-changing experience for electric vehicles,” and it ended up truly catalyzing things for not only the industry, but Tesla as well.

The Model S acted as a fundraiser of sorts for future vehicles, just as the Model X did. They paved the way for the Model 3 and Model Y to be developed and offered by Tesla at a price point that was more acceptable and accessible to the masses.

The Current State of the Tesla Model S

The Model S contributes to a very small percentage of Tesla sales. The company groups the Model S with the Model X and Cybertruck in its quarterly releases.

Last year, that grouping sold 85,133 total units, a small percentage of the 1.789 million cars it delivered to customers in 2024.

Things looked to be changing for the Model S and the Model X this year, as Tesla teased some improvements to the two cars with a refresh. However, it was very underwhelming and only included very minor changes.

Lucid CEO shades Tesla Model S: “Nothing has changed in 12 years now”

It appeared as if Tesla was planning to sunset the two cars, and while it has not taken that stance yet, it seems more likely that the company will begin taking any potential options to heart.

CEO Elon Musk said a few years ago that the two cars were only produced due to “sentimental reasons.”

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