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SpaceX installs first parts of tower meant to catch Starship boosters

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SpaceX’s Starship ‘launch tower’ appears to have been outfitted with the first major component of a mechanism that’s meant to allow the structure to catch Starship boosters – and maybe the ships themselves – in mid-air.

Already speeding towards completion just a few months after assembly began, the tower’s primary purpose is to provide a stable platform capable of steadying Starships and Super Heavy boosters during final integration, when the two stages combine to become one launch vehicle. Situated a stone’s throw from the Gulf of Mexico on the windy South Texas coast, the process of carefully mating two halves of what amounts to a several hundred ton skyscraper will be far harder than it might seem.

Though early operations could likely trade refinement for patience and some level of added risk, regular Starship operations will necessitate rapid, reliable, and repeatable mating in almost all weather and wind conditions. In other words, Starship’s integration tower will likely be outfitted with arm-like structures capable of temporarily fixing Starships and Super Heavy boosters in place. Teased several times by CEO Elon Musk over the last six or so months, SpaceX or its stubborn leader seem to have decided somewhere along the way that the same tower could potentially catch those building-sized rocket stages, too.

Recently described as “basically Mechazilla” by Musk, the launch tower’s supposed catching mechanism is almost a complete mystery. Based on the CEO’s comments, the implication is that some kind of giant, mobile pair of robotic arms will be affixed to the tower’s exterior. When catching Super Heavy boosters, Musk says those arms will ‘grab’ the rocket just below its Falcon booster-style grid fins. In fact, a prototype of a Super Heavy booster’s grid fin section was recently completed at SpaceX’s Boca Chica factory and sports what looks like two anchor-like structures that could be used to secure and grapple the rocket.

Falcon 9 booster B1048 bares three of its four hold-down anchors. (Richard Angle)

A bit like the four anchors used to secure Falcon boosters to the launch pad before liftoff and withstand hundreds of tons of thrust, the structures installed between Super Heavy grid fin mounts appear similar but are instead installed near the top of the rocket. Perfect, in other words, to serve as anchor points for cranes or clamps. It’s possible that Super Heavy boosters could also ‘land’ by resting the flat rear end of those hardpoints on the tower’s arms.

At the same time, catching boosters with the flat end of those hardpoints with give Super Heavy an extraordinarily narrow window for successful recovery unless its grid fins are also capable of serving as the passive part of the catch mechanism.

The tower’s guide rail-like structures are visible here running up and down the left beams. (NASASpaceflight.com)

Known as a drawworks and potentially scavenged from Phobos, an oil rig turned SpaceX sea launch platform, the powerful hoist may be the first part of the mechanism that could allow the tower’s arms to roll up and down its exterior, ‘cushion’ landing boosters, and function a bit like a crane. Using rail-like structures visible on three of the tower’s four ‘legs,’ the hoist could lift that mechanism like a sort of complex rocket elevator.

Ultimately, though, SpaceX’s unprecedented Starship launch/catch tower will remain a mystery until it’s fully assembled and in active use. Thankfully, based on the rate of progress being made over the last few months, those milestones might be just a few months away.

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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 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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