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SpaceX’s latest Falcon 9 booster returns to port as NASA hints at “vested interest”

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SpaceX has safely returned Falcon 9 booster B1056 to port and lifted the rocket ashore after successfully supporting Cargo Dragon’s 18th mission to the International Space Station (ISS).

B1056’s safe return is by no means a surprise, but it is still a relief after mild issues caused Falcon Heavy center core B1055 to topple over just a few weeks prior. SpaceX’s robotic “Octagrabber” was visibly attached to newest Falcon 9 booster, taking advantage of compatibility not available to the Falcon Heavy core. According to NASA and SpaceX, the booster’s recovery was weighing on the minds of both stakeholders thanks to interest in reusing B1056 on future Cargo Dragon launches.

https://twitter.com/_TomCross_/status/1124861354060468224

“Quite frankly, [NASA] had a vested interest.”

“Quite frankly, [NASA] had a vested interest in this particular booster. We were gonna require it – the intent is to [reuse it for SpaceX’s upcoming CRS-18 launch] and – potentially – CRS-19.”

Kenny Todd, ISS Operations and Integration Manager, NASA Johnson

Intertwined with SpaceX successfully returning the booster to shore, NASA ISS manager Kenny Todd provided some fascinating and eloquent insight into the space agency’s position on the mission. Several questions from members of the press centered around a launch scrub that pushed CRS-17 from May 3-4. SpaceX VP of Flight Reliability Hans Koenigsmann noted that SpaceX is moving to a concept of operations where booster recovery is just as important and just as necessary as any other technical aspect of launch.

In other words, when SpaceX drone ship Of Course I Still Love You (OCISLY) suffered a rare hardware failure that hobbled its redundant power supplies, NASA had no qualms with the company’s decision to scrub the launch attempt. In fact, confirming educated speculation previously published on Teslarati, NASA had a “vested interest” in the successful recovery of B1056. According to Todd’s comments, NASA unequivocally wants SpaceX to fly its next Cargo Dragon mission – CRS-18, NET mid-July – on the newly flight-proven booster. NASA is even open to flying on B1056 for a third time on CRS-19, pending the condition and availability of the booster.

Unique in SpaceX’s Falcon 9 Block 5 fleet thanks to an exceptionally gentle reentry and recovery, B1056 should easily lend itself to multiple reuses in support of future NASA missions. In fact, of the three (up to as many as five) additional CRS1 Cargo Dragon missions still on contract, there is no immediate technical reason to assume that Falcon 9 B1056 can’t be involved in a majority of those launches, if not all of them. NASA, of course, has the final say in which Falcon 9s their missions launch on, but the agency’s apparent openness to launching on a twice-flown booster opens the door for thrice-flown boosters and beyond.

Space oddities and Falcon curiosities

B1056’s return also offered a unique – if not unprecedented – glimpse of what was likely a purge of TEA/TEB, the pyrophoric fluids Falcon 9 uses to ignite its Merlin engines. Normally, SpaceX recovery technicians likely perform this purge while still hundreds of miles out at sea. Drone ship OCISLY’s perch just a dozen or so miles from Port Canaveral and the Florida coast may have precluded this, leading to a rare bit of controlled in-port fireworks. While the sight of open flame beneath a freshly-recovered rocket triggered some immediate and understandable concern from bystanders, the process appears to have been both routine and controlled by SpaceX.

B1056’s interstage-tank join features some new hardware. (Tom Cross)
Falcon 9 B1049 is pictured here after its second launch, January 2019. (Pauline Acalin)

On a more minor note, SpaceX also appears to have debuted at least one minor (visible) hardware modification on B1056, utilizing a new hybrid method to join the top of Falcon 9’s liquid oxygen tank to its interstage (the black section). SpaceX prides itself on the practice of continuously improving all aspects of its rockets and spacecraft, so this change is more of a small visualization of that strategy than a major revelation.

Up next for SpaceX, however, is a launch that may end up being quite the revelation for observers. The mission – SpaceX’s official Starlink launch debut – is the first of many dozens of launches planned over the next five or so years. According to people familiar with the matter, both the quantity and weight of the Starlink satellites that will be aboard Falcon 9 are likely to blow expectations out of the water, particularly after competitor OneWeb’s first launch placed just five spacecraft in orbit. Starlink-1 (for lack of an official name) is scheduled to launch no earlier than May 13th, although CRS-17’s launch delays may delay that target by several days.

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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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