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SpaceX will transition all launches to Falcon 9 Block 5 rockets after next mission
SpaceX’s 13th reuse of a Falcon 9 booster marked the second-to-last orbital mission of older boosters before the rocket’s highly reusable Block 5 upgrade takes over all future commercial launches.
If only for the staggering rise of SpaceX’s program of reusable rockets, June 4’s Falcon 9 launch was novel and thrilling in part because its flight-proven booster was intentionally stripped of all reuse-related hardware to bestow as much performance as possible on the mission’s large geostationary communications satellite payload, named SES-12. While this practice of intentionally expending non-Block 5 flight-proven boosters after launch has actually been fairly common over the course of the last seven Falcon 9 reflights, excluding Falcon Heavy – SpaceX is, in essence, betting heavily on the viability and success of the rocket’s quasi-final Block 5 upgrade.
SpaceX’s second to last commercial launch with a non-Block 5 Falcon 9 was completed around 1 am EST June 4. It’s once flight-proven booster ended its life in the Atlantic soon after liftoff. (Tom Cross)
Following June 4’s SES-12 launch, after which Falcon 9 S1 (B1040, previously flown on the September 2017 launch of a classified X-37B spaceplane) arced down its final parabola into the Atlantic, SpaceX has just a single commercial launch of a Block 4 booster scheduled. In fact, that launch happens to be next up on the company’s manifest: currently no earlier than (NET) June 28, CRS-15 will see the same booster (B1045) that launched NASA’s TESS exoplanet observatory scarcely ten weeks prior send a refurbished Cargo Dragon to the International Space Station. After CRS-15, which will also see its booster expended in the Atlantic, just one flightworthy Block 4 rocket will remain in SpaceX’s fleet, and that Falcon 9 booster is understood to be undergoing refurbishment for its final reflight. That mission, however, is a suborbital demonstration designed to prove that SpaceX’s Crew Dragon spacecraft can wrest its human passengers out of harm’s way in the event of a launch vehicle failure during flight (SpaceX already proved it can accomplish the same task while the rocket is still on the launch pad in a 2015 demo).
https://twitter.com/_TomCross_/status/1003509362906853376
No turning back now
While a critical path for SpaceX’s future of reliably delivering crew to orbit, its suborbital nature makes categorically distinct from past and future Falcon launches, all of which have been conducted with the intent of placing payload(s) into Earth orbit. Thus we arrive back at B1045 and CRS-15, currently scheduled as both SpaceX’s next launch and the final orbital mission before Falcon 9/Heavy Block 5 becomes the company’s only operational route to space for at least the next two years, give or take half a year. It’s thus somewhat poetic that the booster tasked with CRS-15 will easily smash SpaceX’s previous record for refurbishment (135 days) by almost a factor of two, going from drone ship recovery to reflight in as few as 71 days. Whatever it becomes, that refurbishment record will likely be broken by the first Block 5 reflight, a trend that will almost certainly continue until SpaceX reaches Musk’s fabled 24-hour turnaround, perhaps before the end of next year.
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- A flight-proven Falcon 9, B1040, looking particularly well-done before its second and final launch on June 4. (Tom Cross)
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- SES-12’s Block 4 booster roars into the air on its final flight. (SpaceX)
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- Falcon 9 Block 5 completed its first launch on May 11, carrying the Bangabandhu-1 communications satellite to geostationary transfer orbit. (Tom Cross)
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- It may not immediately look like a major departure from past versions, but Block 5 could theoretically usher in 10-100 reflights of a single rocket booster. (SpaceX)
Extrapolating from the launch company’s recent history, the culmination of CRS-15 will potentially leave SpaceX with as few as two Falcon 9 Block 5 boosters as its entire flight-ready rocket fleet, despite anywhere from 12 to 16 launches remaining on the second half of the company’s 2018 manifest. Currently standing at six boosters produced in 2018, roughly eight to be completed before the end of the year per COO and President Gwynne Shotwell (in this case likely boosters B1048-1056), an achievement that would grow the ranks of the company’s fleet of new Block 5 boosters to ten total. But, assuming a core is delivered from the Hawthorne factory every month, SpaceX will need to reuse Block 5 boosters as early as July to prevent considerable delays to their 2018 manifest, delays that would undoubtedly push multiple missions into 2019.
Here’s to hoping that the Block 5 upgrade is as incredible of a success as SpaceX has designed it to be. Follow the Teslarati team for real-time updates, glimpses behind the scenes, and photos from Teslarati’s East and West Coast photographers.
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News
Tesla Semi expands pilot program to Texas logistics firm: here’s what they said
Mone said the Tesla Semi it put into its fleet for this test recorded 1.64 kWh per mile efficiency, beating Tesla’s official 1.7 kWh per mile target and delivering a massive leap over conventional diesel trucks.
Tesla has expanded its Semi pilot program to a new region, as it has made it to Texas to be tested by logistics from Mone Transport. With the Semi entering production this year, Tesla is getting even more valuable data regarding the vehicle and its efficiency, which will help companies cut expenditures.
Mone Transport operates in Texas and on the Southern border, and it specializes in cross-border U.S.-Mexico freight operations. After completing some rigorous testing, Mone shared public results, which stand out when compared to efficiency metrics offered by diesel vehicles.
“Mone Transport recently had the opportunity to put the Tesla Semi to the test, and we’re thrilled with the results! Over 4,700 miles of operations at 1.64 kWh/mile in our Texas operation. We’re committed to providing zero-emission transportation to our customers!” the company said in a post on X.
🚨 Mone Transport just recorded an extremely impressive Tesla Semi test:
1.64 kWh per mile over 4,700 miles! https://t.co/xwS2dDeomP pic.twitter.com/oLZHoQgXsu
— TESLARATI (@Teslarati) March 10, 2026
Mone said the Tesla Semi it put into its fleet for this test recorded 1.64 kWh per mile efficiency, beating Tesla’s official 1.7 kWh per mile target and delivering a massive leap over conventional diesel trucks.
Comparable Class 8 diesel semis, typically achieving 6-7 miles per gallon, consume roughly 5.5 kWh per mile in energy-equivalent terms, meaning the Semi uses three to four times less energy while also producing zero tailpipe emissions.
Tesla Semi undergoes major redesign as dedicated factory preps for deliveries
The performance of the Tesla Semi in Mone Transport’s testing aligns with data from other participants in the pilot program. ArcBest’s ABF Freight Division logged 4,494 miles over three weeks in 2025, averaging 1.55 kWh per mile across varied routes, including a grueling 7,200-foot Donner Pass climb. The truck “generally matched the performance of its diesel counterparts,” the carrier said.
PepsiCo, which operates the largest known Semi fleet, recorded 1.7 kWh per mile in North American Council for Freight Efficiency testing. Additional pilots showed similar gains: DHL hit 1.72 kWh per mile, and Saia achieved 1.73 kWh per mile.
These metrics underscore the Semi’s ability to slash operating costs through superior efficiency, lower maintenance, and zero-emission operation. As charging infrastructure scales and production ramps toward 2026 targets, participants like Mone Transport are proving electric semis can seamlessly integrate into freight networks, accelerating the industry’s shift to sustainable, high-performance trucking.
Tesla continues to prep for a more widespread presence of the Semi in the coming months as it recently launched the first public Semi Megacharger site in Los Angeles. It is working on building out infrastructure for regional runs on the West Coast initially, with plans to expand this to the other end of the country in the coming years.
Elon Musk
SpaceX weighs Nasdaq listing as company explores early index entry: report
The company is reportedly seeking early inclusion in the Nasdaq-100 index.
Elon Musk’s SpaceX is reportedly leaning toward listing its shares on the Nasdaq for a potential initial public offering (IPO) that could become the largest in history.
As per a recent report, the company is reportedly seeking early inclusion in the Nasdaq-100 index. The update was reported by Reuters, citing people familiar with the matter.
According to the publication, SpaceX is considering Nasdaq as the venue for its eventual IPO, though the New York Stock Exchange is also competing for the listing. Neither exchange has reportedly been informed of a final decision.
Reuters has previously reported that SpaceX could pursue an IPO as early as June, though the company’s plans could still change.
One of the publication’s sources also suggested that SpaceX is targeting a valuation of about $1.75 trillion for its IPO. At that level, the company would rank among the largest publicly traded firms in the United States by market capitalization.
Nasdaq has proposed a rule change that could accelerate the inclusion of newly listed megacap companies into the Nasdaq-100 index.
Under the proposed “Fast Entry” rule, a newly listed company could qualify for the index in less than a month if its market capitalization ranks among the top 40 companies already included in the Nasdaq-100.
If SpaceX is successful in achieving its target valuation of $1.75 trillion, it would become the sixth-largest company by market value in the United States, at least based on recent share prices.
Newly listed companies typically have to wait up to a year before becoming eligible for major indexes such as the Nasdaq-100 or S&P 500.
Inclusion in a major index can significantly broaden a company’s shareholder base because many institutional investors purchase shares through index-tracking funds.
According to Reuters, Nasdaq’s proposed fast-track rule is partly intended to attract highly valued private companies such as SpaceX, OpenAI, and Anthropic to list on the exchange.
Elon Musk
The Boring Company’s Prufrock-2 emerges after completing new Vegas Loop tunnel
The new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The Boring Company announced that its Prufrock-2 tunnel boring machine (TBM) has completed another Vegas Loop tunnel in Las Vegas. The company shared the update in a post on social media platform X.
According to The Boring Company’s post, the new tunnel measures 2.28 miles, making it the company’s longest single Vegas Loop tunnel to date.
The new tunnel marks the fourth tunnel constructed near Westgate Las Vegas as the Vegas Loop network continues expanding across the city.
The Boring Company also noted that the new tunnel surpassed its previous internal record of 2.26 miles for a single Vegas Loop segment.
Construction of the tunnel involved moving roughly 68,000 cubic yards of dirt. The excavation process also used about 4.8 miles of continuous conveyor belt, powered by six motors totaling 825 horsepower.
The Boring Company’s Prufrock-series all-electric tunnel boring machines are designed to support the rapid expansion of company’s underground transportation projects, including the growing Vegas Loop network. Prufrock machines are designed for reusability, thanks in no small part to their capability to be deployed and retrieved easily through their “porposing” feature.
The Vegas Loop, specifically the Las Vegas Convention Center (LVCC) Loop segment, has already been used during major events. Most recently, the LVCC Loop supported the 2026 CONEXPO-CON/AGG construction trade show, which was held from March 3-7, 2026.
As per The Boring Company, the LVCC Loop transported roughly 82,000 passengers across the convention center campus during the event’s duration.
CONEXPO-CON/AGG is one of the largest construction trade shows in North America, drawing more than 140,000 construction professionals from 128 countries this year.
The LVCC Loop forms the initial segment of the broader Vegas Loop network, which remains under active development as The Boring Company continues building new tunnels throughout the city.
Tesla Semi expands pilot program to Texas logistics firm: here’s what they said
SpaceX weighs Nasdaq listing as company explores early index entry: report
