

News
SpaceX’s first flight-proven Falcon Heavy Block 5 rocket ready for static fire test
According to NASASpaceflight.com, SpaceX is just ~48 hours away from Falcon Heavy Flight 3’s critical static fire test, in which all 27 of the rocket’s Merlin 1D engines will be briefly ignited.
If the routine test goes as planned, SpaceX’s third completed Falcon Heavy will be ready to lift off as early as 11:30 pm ET (03:30 UTC), June 24th. Atop the massive rocket will be the US Air Force’s Space Test Program-2 (STP-2) mission, a collection of 24 small satellites from a variety of US government agencies and academic institutions. Practically speaking, STP is often more of an engineered excuse to launch, involving satellites and customers that are willing to accept higher risk than more valuable payloads, making it far easier for the US military to certify new technologies and new commercial launch vehicles.
As previously discussed on Teslarati, STP-2 is an extremely ambitious mission that aims to simultaneously certify or pave the way towards certification of critical capabilities. First and foremost, it will (barring serious anomalies) give the US military the data it needs to certify SpaceX’s Falcon Heavy rocket for all national defense launches, giving ULA’s Delta IV Heavy its first real competition in a decade and a half.
Included under the umbrella of that catch-all certification is a sort of torture-test validation of the long-coast capabilities of SpaceX’s Falcon upper stage. To successfully complete STP-2, the upper stage will be subjected to “four separate upper-stage engine burns, three separate deployment orbits, a final propulsive passivation maneuver, and a total mission duration of over six hours.” It will likely be SpaceX’s most technically-challenging launch ever.
Finally, the US Air Force has decided that STP-2 presents an excellent opportunity to begin the process of certifying flight-proven SpaceX rockets for military launches. The STP-2-related work is more of a preliminary effort for the USAF to actually figure out how to certify flight-proven commercial rockets, but it will still be the first time the a dedicated US military mission has flown on a flight-proven launch vehicle. Down the road, the processes set in place thanks – in part – to STP-2 and Falcon Heavy may also apply to aspirational rockets like Blue Origin’s New Glenn and ULA’s “SMART” concept for Vulcan reuse.
Still, New Glenn is unlikely to be ready for flight-proven military launches until the mid-2020s, while ULA has no plans to even attempt to implement Vulcan’s “SMART” reuse until ~2026, meaning that military certification probably wont come until 2028-2030 at the earliest. SpaceX has thus earned roughly half a decade where it will be the only viable US launch provider that can offer certified flight-proven hardware with an established record of reliability. Although the Air Force Research Laboratory (AFRL) had a lone smallsat aboard SpaceX’s February 2019 launch of PSN-6 and Spaceflight’s GTO-1 mission, STP-2 will be the first time a dedicated Department of Defense mission has flown on flight-proven launch vehicle hardware since 1992 (STS-53).
Aside from flight-proven Falcon Heavy side boosters B1052 and B1053, STP-2 is expected to use a new center core, B1057. SpaceX is in the late stages of vehicle integration and should be nearly complete by Monday, June 17th in order to support a June 18th static fire. The specific static fire window is not yet public but Falcon Heavy will likely roll out to Pad 39A no less than 12 hours before.
Teslarati photographers Tom Cross and Pauline Acalin will both be on site with a bevy of remote cameras to capture SpaceX’s third Falcon Heavy before, during, and after liftoff. STP-2 will be Falcon Heavy’s first attempted nighttime launch. Stay tuned for updates as we get closer to T-0!
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Elon Musk
Elon Musk affirms Tesla commitment and grueling work schedule: “Daddy is very much home”
The remarks came as Tesla shares crossed the $400 mark on the stock market.

Tesla CEO Elon Musk reiterated his commitment to the electric vehicle maker and its future projects this week, responding to speculation following his $1 billion purchase of TSLA stock.
The remarks came as Tesla shares crossed the $400 mark on the stock market, extending a rally fueled in part by Musk’s TSLA purchase.
Elon Musk’s nonstop work schedule
Amidst the reaction of TSLA stock to Musk’s $1 billion investment, Tesla owners such as @greggertruck noted that “Daddy’s home.” Musk replied, stating that “Daddy is very much home.” He then shared details of a packed weekend of work, which was definitely grueling but completely within character for a “wartime CEO.”
Musk did note, however, that he had lunch with his kids during the weekend despite his extremely busy schedule.
“Daddy is very much home. Am burning the midnight oil with Optimus engineering on Friday night, then redeye overnight to Austin arriving 5am, wake up to have lunch with my kids and then spend all Saturday afternoon in deep technical reviews for the Tesla AI5 chip design.
“Fly to Colossus II on Monday to walk the whole datacenter floor, review transformers and power production (excellent progress), depart midnight. Then up to 12 hours of back-to-back meetings across all Tesla departments, but with a particular focus on AI/Autopilot, Optimus production plans, and vehicle production/delivery,” Musk wrote in his post.
Wartime CEO
Wedbush analyst Dan Ives described Musk as operating in “wartime CEO mode,” highlighting autonomous driving and AI as a trillion-dollar market opportunity for Tesla. Musk reiterated this point late last month as well, when he outlined the several projects he is juggling among his numerous companies. At the time, Musk stated that he was busy with Starship 10, Grok 5, and Tesla V14. This was despite his notable presence on X.
With Tesla Master Plan Part IV being partly released, the company is entering what could very well be its most ambitious stage to date. To usher in an era of sustainable abundance, Tesla would definitely require a “wartime CEO,” someone who could remain locked in and determined to push through any obstacles to ensure that the company achieves its goals.
News
Elon Musk confirms cryptic X post was related to SpaceX, not TSLA stock
Musk shared his update in a post on social media platform X.

Elon Musk has confirmed that a cryptic post he shared earlier this month was related to his private sale enterprise, SpaceX, not electric vehicle maker Tesla.
Musk shared his update in a post on social media platform X.
Musk’s cryptic post
Earlier this month, the CEO posted the cryptic words “You’ll Thank Me Later” on X. The post quickly gained attention on social media, as Tesla watchers and Elon Musk fans speculated on what the words could mean. With the announcement that Musk has purchased $1 billion of TSLA stock in the open market, some speculated that the cryptic post was a teaser of sorts to shareholders.
Musk’s massive TSLA purchase was the biggest in history, and it also stood as a notable vote of confidence for the company as it attempts to enter a new era led by robots, AI, and autonomous driving. This was likely one of the reasons why Tesla stock saw a notable rise on Monday’s trading. In another post, however, Musk confirmed that his cryptic post was not in any way related to his stock purchase.
All SpaceX
Considering that all the words in Musk’s post started with an uppercase letter, some space fans immediately speculated that the CEO was teasing something related to SpaceX. The company’s three drone ships, Just Read the Instructions (JRTI), Of Course I Still Love You (OCISLY), and A Shortfall of Gravitas (ASOG), after all, follow similar naming styles.
This was one of the reasons why some TSLA shareholders noted on X that Musk’s post was likely SpaceX-related. In response to one of these comments, Musk stated that these speculations are “Correct.”
The only question now is what exactly Musk was referring to in his post. Perhaps the CEO really was hinting at the name of the drone ship that will be tasked to retrieve Starship in the middle of the ocean.
News
Tesla Model Y leads as weekly registrations in China hit Q3 high
Out of Tesla China’s 15,350 registrations, the Model Y once again accounted for the majority.

Tesla recorded 15,350 insurance registrations in China during the week of September 8–14, marking a 7.3% increase compared to the prior week. The figure also represents the highest weekly result so far in the third quarter of 2025.
Model Y still leads demand
Out of the 15,350 registrations, the Model Y once again accounted for the majority. Data shows 9,460 registrations for the standard Model Y, complemented by 1,030 units of the newly launched extended wheelbase, six-seat Model Y L. Tesla also logged 4,860 Model 3 sedans for the week as well, as noted in a CNEV Post report.
The Model Y L, which debuted in late August, registered a modest uptick from the 900 registrations it saw the week before. Volumes remain relatively low, suggesting that the variant will not meaningfully change Tesla’s third-quarter sales trajectory. That being said, Tesla China’s previous comments about the Model Y L’s demand suggest that an uptick in registrations may be coming in the next weeks.
The ramp of the Model Y L will likely be a notable topic among Tesla watchers, as its ramp will still be quite a task despite the vehicle being just a new variant of the all-electric crossover. With this in mind, meaningful numbers of Model Y L registrations may hit their pace in the next quarter instead.
Tesla China’s momentum
As per data from the China Passenger Car Association (CPCA), Tesla’s retail sales in August 2025 totaled 57,152 units. That figure marked a 9.9% decline from August 2024’s 63,456 units, but a significant 40.7% increase from July’s 40,617 deliveries.
Quarter-to-date, Tesla China’s results show a 34.4% gain compared to the previous quarter but remain down 11% year-over-year. Year-to-date, Tesla is down about 7% in China versus the same period in 2024. With only a couple more weeks before the end of the third quarter, Tesla China’s registrations may help determine whether the company could catch up to its 2024 numbers this year.
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