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SpaceX to fly ‘hybrid’ Falcon 9 with Block 4 and 5 stages on June 4 launch
According to SES chief technical officer Martin Halliwell, SpaceX intends to “thread the needle” with a unique hybrid Falcon 9 launch of his company’s SES-12 communications satellite on June 4th.
In the case of this launch, Halliwell’s “needle” refers to unsavory weather conditions present at Florida’s Cape Canaveral launch facilities, although weather appears to be improving significantly over the next few days. Originally scheduled for launch on May 24, SES-12 was pushed to May 31, June 1st, and finally June 4th, according to a tweet from SpaceX earlier this morning. Minor difficulties with hardware in the Falcon 9’s Block 5 upper stage required additional troubleshooting and were ultimately magnified by the fact that Cape Canaveral Air Force Station’s range is technically supposed to be closed for launches at the moment, a shutdown of two or so weeks meant to allow the station’s range to conduct routine maintenance and install upgraded hardware (radar, meteorology, helicopter maintenance, avionics, software, etc).
https://twitter.com/_TomCross_/status/1002217744421609474
As such, it’s unlikely that the minor upper stage hardware issues referenced by SpaceX literally entailed a 72 hour delay. In fact, it’s fairly unique for the Eastern Range to go so out of their way to accommodate launches well within a closure period – May 28 to June 9 – scheduled months in advance. Once SpaceX’s SES-12 mission is completed, the range will likely try to complete necessary maintenance ops.

Falcon 9 B1040 returns to Landing Zone-1 after launching the X-37B spaceplane. It’s second and final flight will be with the SES-12 communications satellite. (SpaceX)
In a press conference hosted by the satellite operator SES, CTO Martin Halliwell further discussed some of the more technical aspects of the imminent SpaceX launch, waxing poetic about the particular flight-proven rocket’s fusion of a Block 4 Falcon 9 first stage and a Block 5 upper stage. With its “monster” Block 5 Merlin Vacuum engine, Halliwell noted that the extra performance provided by the upgraded second stage’s higher thrust, the expendable first stage launch profile, and the removal of its grid fins and landing legs could enable as much as seven years of additional operational life for the massive communications satellite.
Although the CTO did not explicitly confirm it, his comments indicate that this launch of the Block 5 upper stage – likely the third after Falcon 9 Block 5’s May 11 debut – may operate at 5% higher thrust for the first time, something briefly discussed by SpaceX CEO Elon Musk in a press call before the Block 5 debut. In that call, the CEO stated that the upgraded vacuum version of Merlin would fly with its thrust downrated by 5% to avoid risking a customer’s payload while ensuring that the hardware and software upgrades were functioning as intended. It appears that the data and experience provided by the Bangabandhu-1 mission’s downrated thrust profile was extremely encouraging, leading SpaceX to open the throttle a bit more with the SES-12 mission, so to speak.
- Falcon 9 1046’s Block 5 upper stage shown on its May 11 debut launch with Bangabandhu-1. SpaceX’s rockets already provide rich telemetry live to the company’s launch controllers. (SpaceX)
- Falcon 9 Block 5 completed its first launch on May 11, carrying the Bangabandhu-1 communications satellite to geostationary transfer orbit. (Tom Cross)
Falcon 9 B1040, the reused booster tasked with launching the second stage and satellite above Earth’s atmosphere, previously flew on September 7, 2017, launching the USAF’s secretive X-37B spaceplane into low Earth orbit. Teslarati photographer Tom Cross will capture the booster’s last flight around 12:30am on June 4th.
Elon Musk
Elon Musk just revealed more about Tesla’s June Robotaxi launch
Tesla CEO Elon Musk gave more information about the Robotaxi launch in Austin set for June.

Tesla CEO Elon Musk just revealed more details about the company’s June Robotaxi launch, which will kick off in Austin.
As of right now, Tesla is still set to push out the first Robotaxi rides in Austin, Texas, in early June. These vehicles will be in short supply at first, as Musk says the company is purposely rolling out the fleet in a slow and controlled fashion to prioritize safety. There will be ten vehicles in the Robotaxi fleet to start.
Tesla Robotaxi deemed a total failure by media — even though it hasn’t been released
However, in an interview with CNBC on Tuesday afternoon, Musk also revealed some other new details, including where in Austin the vehicles will be able to go, how many Robotaxis we could see on public roads within a few months, and other information regarding Tesla’s Full Self-Driving suite.
A Controlled Rollout
Tesla has maintained for a few months now that the Robotaxi fleet will be comprised of between 10 and 20 Model Y vehicles in Austin.
The Cybercab, which was unveiled by the company last October, will not be available initially, as those cars will likely be produced in 2026.
Musk said during the CNBC interview that Tesla is doing a low-yield trial at first to initiate a safety-first mentality. It is important for Tesla to launch the Robotaxi fleet in a small manner to keep things in check, at least at first.
As confidence builds and the accuracy of the fleet is ensured, more vehicles will be added to the fleet.
Musk believes there will be 1,000 Robotaxis on the road “in a few months.”
Geofenced to Certain Austin Areas
Tesla will be launching the Robotaxi program in a geofenced fashion that gives the company the ability to control where it goes. Musk says that the areas the Robotaxis will be able to travel to are among the safest neighborhoods and areas in Austin.
This is yet another safety protocol that will ensure the initial riders are not put in dangerous neighborhoods.
Some might be disappointed to hear this because of Tesla’s spoken confidence regarding Robotaxi, but the initial rollout does need to be controlled for safety reasons. An accident or incident of any kind that would put riders’ lives in danger would be catastrophic.
No Driver, No Problem
As the company has rolled out an employee-only version of the Robotaxi program in Austin and the San Francisco Bay Area, some wondered whether the rides would be driverless, as these initial trials for Tesla workers were not. Employee rides featured a human in the driver’s seat to ensure safety.
Tesla says it has launched ride-hailing Robotaxi teaser to employees only
The company did not report whether there were any interventions or not, but it did state that the vehicles traveled over 15,000 miles through 1,500 trips.
Musk confirmed during the interview that there will be no driver in the vehicle when the Robotaxi program launches in June. This will be groundbreaking as it will be the first time that Tesla vehicles will operate on public roads without anyone in the driver’s seat.
Full Self-Driving Licensing
For more than a year, Tesla has indicated that it is in talks with another major automaker regarding the licensing of Full Self-Driving. Many speculated that the company was Ford, but neither it nor Tesla confirmed this.
Musk said today that Tesla has been in touch with “a number of automakers” that have inquired about licensing FSD. Tesla has yet to sign any deal to do so.
Here is the full interview with @elonmusk talking about Tesla and the Cybercab! pic.twitter.com/992njb0lPS
— Robin (@xdNiBoR) May 20, 2025
Elon Musk
Elon Musk on Tesla vehicle sales: “We see no problem with demand”
“The sales numbers at this point are strong, and we see no problem with demand,” Musk said.

During a rather testy interview with Bloomberg’s Mishal Husain at the Qatar Economic Forum, Elon Musk stated that the demand for Tesla’s vehicles is still strong. Musk also stated that the issues that Tesla faced earlier his year have already turned around.
Already Turned Around
Tesla sales saw notable drops in the past months, particularly in Europe, where several countries saw drastically fewer Tesla sales year-over-year. Tesla stated in its Q1 2025 vehicle delivery report that the declines were largely due to the company’s changeover to the new Model Y, but media reports nevertheless placed the blame on Musk’s politics and his work with the Trump administration’s Department of Government Efficiency (DOGE).
It was then no surprise that Bloomberg’s Husain pointed out Tesla’s low sales in Europe this April during the interview. When questioned about the matter, Musk stated that things have “already turned around.” Musk also noted that while Tesla sales are down in Europe so far, this is true for numerous other carmakers in the region.
No Problem With Demand
When asked for evidence to back up his claims, Musk stated that Europe is indeed Tesla’s weakest market, but the company remains “strong everywhere else.” He also admitted that while Tesla has “lost some sales from the left,” the company also “gained some from the right.” Musk highlighted the fact that Tesla stock, which is partly affected by analysts with insider information, is trading at near all-time highs.
“The sales numbers at this point are strong, and we see no problem with demand. You can just look at the stock price. If you want the best insider information, the stock market analysts have that, and our stock wouldn’t be trading near all-time highs if things weren’t in good shape. They’re fine. Don’t worry about it,” Musk said.
Watch Elon Musk’s full interview at the Qatar Economic Forum in the video below.
Elon Musk
Tesla’s Elon Musk confirms he’ll stay CEO for at least five more years
Tesla CEO Elon Musk eased any speculation about his role with the company as he confirmed he would be with the automaker for at least five more years.

Tesla’s Elon Musk said that he will still be CEO of the automaker in five years’ time, dispelling any potential skepticism regarding his commitment or plans with the company.
In the past, there was some speculation that Musk would leave Tesla if he was not adequately compensated for his work. He had a massive pay package taken from him by Delaware Judge Kathaleen McCormick in a move that caused Tesla to reincorporate its company in Texas.
Tesla Chair of the Board letter urges stockholders to approve Texas reincorporation
However, Musk confirmed today with a simple “Yes” that he would still be Tesla’s frontman in five years during an interview with Bloomberg at the Qatar Economic Forum:
“Do you see yourself and are you committed to still being the chief executive of Tesla in five years’ time?”
“Yes.”
Musk has had the massive $56 billion pay package declined twice by Chancellor McCormick, who has ruled that the pay was an “unfathomable sum.” Shareholders have voted twice in overwhelming fashion to award Musk with the pay package, but she has overruled it twice. This seemed to be one reason Musk might minimize his role or even step away from Tesla.
He said (via Bloomberg):
“The compensation should match that something incredible was done. But I’m confident that whatever some activist posing as a judge in Delaware happens to do will not affect the future compensation.”
Musk’s commitment to Tesla for the next five years will help steer the company in a more stable direction as it begins to expand its market well past automotive and sustainable energy. Although Tesla has been labeled as an AI company, it is also starting to push more into the robotics industry with the future release of the Optimus robot.
Now that Musk is on board for at least five more years, Tesla investors have their frontman, who has remained firm on the company’s vision to be a true disruptor in all things tech. The company’s stock is trading up just over 1 percent at the time of publication.
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