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SpaceX CEO Elon Musk to present first Starship update since 2019 [webcast]

Starship S20 and Super Heavy B4 were stacked for the second time earlier today. (Richard Angle)

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Barring surprises, SpaceX CEO Elon Musk remains on track to present the first major update on Starship’s development since September 2019 – almost two and a half years ago.

While it’s no longer clear that SpaceX will be able to stack Starship on top of Super Heavy in time for the fully-stacked rocket to serve as an imposing backdrop for the media event, Musk seemingly remains on track to update the world on the status of Starship development as early as 8pm CT (6pm PT, 9pm ET) on Thursday, February 10th (02:00 UTC 11 Feb). Assuming the event is similar to the SpaceX CEO’s first four major Starship presentations, it will be broadcast live to the world on the company’s YouTube channel.

Musk first revealed SpaceX’s detailed plans for a massive, fully-reusable Mars rocket in September 2016. At that point, the rocket – known as the Interplanetary Transport System (ITS) – was to be 12 meters (39 ft) in diameter, 122 meters (400 ft) tall, and made almost entirely out of carbon-fiber composites. In theory, it would have been able to launch up to 300 tons (660,000 lb) to low Earth orbit (LEO) – twice the payload of Saturn V, the next most capable rocket.

In 2017, SpaceX slightly pared back its ambition with a vehicle known as BFR, measuring 9m wide and 106m tall with about a third fewer Raptor engines and estimated performance of ~130 tons (285,000 lb) to LEO. In 2018, on top of announcing Japanese billionaire Yusaku Maezawa’s circumlunar DearMoon mission and BFR’s first real launch contract, SpaceX updated BFR’s design, stretching the booster 12 meters for a total height of 118m (390 ft) and hedging its performance figures with an estimate of 100 tons to LEO in a fully-reusable configuration.

Around the same time as Musk’s 2018 BFR presentation, though, the SpaceX CEO made the decision to entirely scrap the rocket’s composites-heavy design, renaming the rocket ‘Starship’ and replacing the material with stainless steel – effectively reverting structures development to the drawing board. The principles of the rocket, its general shape and layout, and the Raptor engine powering it remained the same. Thanks to steel’s extreme affordability relative to cutting-edge composites, SpaceX was able to make rapid progress and ultimately flew Starhopper – a steel water-tower-esque rocket powered by Raptor – less than a year later in July and August 2019.

Less than a year after Starhopper’s 150m (~500 ft) hop, SpaceX successfully hopped a far more mature Starship prototype known as SN5, which relied on far thinner steel and effectively amounted to a full prototype of the tank section of an orbital-class ship. Just a month later, in September 2020, SpaceX repeated the feat with an entirely different Starship prototype, demonstrating repeatability both in production and flight. Three months later, Starship SN8 – featuring flaps, a nosecone, header tanks, and two more Raptor engines – nearly aced its launch debut. In May 2021, after three more failed test flights, Starship SN15 stuck the landing and survived a 10 km launch, more or less fully demonstrating the rocket’s exotic skydiver-style descent and last-second flip for a vertical landing.

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Visible progress has slowed and flight testing has halted since SpaceX began pushing for the first orbital Starship test flight in mid-2021. The company decided against reusing Starship SN15 and also chose not to attempt to replicate the ship’s successful landing with Starship SN16, which was ready for testing a matter of days after. Instead, SpaceX has focused on constructing the orbital launch site and slowly finished Starship S20 and Super Heavy B4 – a pair once expected to support the first orbital test flight. While slow compared to all previous Starship prototypes, Ship 20 has nonetheless made excellent progress and is effectively fully ready for a serious flight test. Booster 4, on the other hand, has barely completed cryogenic proof testing and has yet to perform even a partial wet dress rehearsal (with live propellant) or attempt a single static fire test in last five months.

In short, the status of Starship development – and, especially, Booster 4, Ship 20, and the first orbital test flight – has gotten quite a bit murkier over the last several months. February 9th and 10th marked a welcome change of pace, with SpaceX sailing through the very first attempt at stacking Starship hardware with Starbase’s ‘orbital integration tower’ (launch tower) and a trio of giant, robotic arms. Just a handful of hours after the first ‘arm lift’ began, Starship S20 was safely stacked atop Super Heavy Booster 4, assembling the largest rocket in the world for the second time this year.

With any luck, SpaceX CEO Elon Musk’s first presentation in two and a half years – scheduled no earlier than 8pm CST (02:00 UTC) – will shed further light on the company’s progress towards orbital test flights.

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 Semi catches fire in California: what we know

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Credit: KTVU

A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.

The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.

There were no injuries reported.

The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.

However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.

At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.

The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.

The truck’s driver said that the Semi caught fire, but he did not have an explanation.

An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.

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Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world

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Credit: Tesla

Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.

A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.

“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”

Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.

Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.

Tesla constitutes the following situations as reasonable justifications for activating the feature:

  • You face an immediate threat to your life or personal safety.
  • You must leave the area immediately.
  • Exiting the vehicle is unsafe.
  • Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.

After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.

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Tesla’s Cybercab battery design could make robotaxis even cheaper

Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.

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Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.

Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.

The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.

Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.

The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”

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That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.

The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.

Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.

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