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SpaceX record-setting booster returns to Port in remarkable condition (photos)

Booster B1049 returned to Port after delivering a batch of 60 Starlink satellites into space. Credit: R. Angle/Teslarati

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SpaceX has successfully recovered its second Falcon 9 in less than a week. Just four days after it launched, booster B1049 returned to sailed into Port Canaveral. The veteran booster is the first to launch and successfully land five times. On June 3, at 9:25 p.m. EDT (0125 GMT on June 4), B1049 took to the skies, delivering another batch of Starlink satellites into orbit.

Now, just three days after a flawless mission, the veteran rocket sailed triumphantly into port. Perched atop SpaceX’s newly remodeled drone ship, Just Read the Instructions (JRTI), B1049’s exterior was visibly more charred after its most recent trip through the atmosphere. This successful landing marks the first mission that JRTI was active in the Atlantic Ocean, as well as the third successful sea recovery in a row for SpaceX.

So far this year, SpaceX has successfully launched nine boosters this year. All but two of them have been recovered—two failed to land on the drone ship. One of those botched attempts was due to some residual cleaning agents trapped inside the engine. That booster, B1048, was SpaceX’s only other booster (so far) to fly five times. 

SpaceX’s Falcon 9 booster B1049 has successfully launched and landed five times. Credit: R. Angle/Teslarati

But it surely won’t be the last. B1051 has already completed four successful missions and could see flight again soon. SpaceX has at least two other launches planned for June, including another Starlink launch and the launch of a GPS satellite for the Air Force. That flight will be on a new booster, B1060, per the Air Force’s request.

As it stands now, government payloads require SpaceX to use a new booster, versus a previously flown one. That was also the case for NASA’s commercial crew program. On May 30, astronauts Bob Behnken and Doug Hurley flew to the International Space Station atop a Falcon 9 rocket. The booster, which returned to Port just a few days ago, what a shiny new booster. However, in a recent development, NASA amended the agreement, saying that SpaceX could use previously flown boosters as well as reuse its Crew Dragon spacecraft.

Currently, SpaceX reuses its cargo version of Dragon, but each upgraded cargo (and Crew) variant can be reused as many as five times. Each booster is currently rated for ten flights, with minimal refurbishments in between.

SpaceX’s fleet of veteran rockets has dwindled a bit, with the loss of B1048 and B1056. Those losses came on the heels of two planned expenditures: B1046 and B1047. B1046was purposefully detonated as part of the company’s In-flight Abort test that occurred in January. That test was a lead up to the Demo-2 mission and proved that SpaceX’s launch escape system worked while B1047 carried the AMOS-17 satellite into orbit and was expended after depositing the satellite into space.

However, the California-based rocket builder should have some new Falcons rolling off the assembly line this summer, which will help support its ambitious Starlink launch manifest. This year, SpaceX has launched six Starlink missions, with at least one more planned for June, possibly two.

To date, SpaceX has launched a total of 482 Starlink satellites, but the company needs between 400-800 satellites on orbit to begin rolling out minimal coverage. To provide the coverage it wants, SpaceX is going to have to keep up the launch pace. And to do so, it will test the reusability factor of its rockets.

So far, we’ve seen two rockets fly five times, but when will B1049 fly a sixth time? How soon will we see a booster reach the 10-flight mark? What sort of refurbishments will it need then? With many more Starlink flights on deck, it will be interesting to see which boosters fly on which missions.

I write about space, science, and future tech.

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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.

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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.

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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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