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SpaceX to launch one of its last old-gen Falcon 9s in upcoming launch
One of SpaceX’s rapidly shrinking fleet of older Falcon 9 launch vehicles has rolled out to the company’s California launch pad ahead of an expendable launch and fairing recovery attempt scheduled for no earlier than Tuesday (NET) 12:47 pm PST/19:47 UTC May 22.
Although SpaceX may have inaugurated a new era of truly reusable rocketry with the debut of Falcon 9 Block 5 earlier this month, there are still a number of older Falcon 9 boosters (all flight-proven) awaiting their second and final flights. At the moment, a minimum of four cores remain, including the sooty Falcon 9 first stage captured earlier this evening by Teslarati photographer Pauline Acalin.
Foreshadowing its imminent watery demise with a lack of landing legs, this particular booster (B1043) previously launched the mysterious and controversial Zuma mission in January 2018, a classified payload claimed (sans convincing evidence) to have failed and reentered Earth’s atmosphere mere hours after reaching orbit. While it’s possible that the mission was a failure, at the moment unsteadily blamed on the failure of a Northrop Grumman-designed payload adapter and deployment mechanism, it’s far more probable that the apparently wildly-expensive satellite is still in orbit.
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- Falcon 9 B1043 lifts off for the first time with Zuma on January 7. (Tom Cross/Teslarati)
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- After landing at LZ-1, B1043 was refurbished in approximately four months. (SpaceX)
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- On May 21, the rocket was rolled out to SLC-4E on the opposite coast of its first launch, ready for one final flight. (Pauline Acalin)
Checking the pulse of Earth’s gravity
Regardless, the same SpaceX rocket booster responsible for lifting Zuma and the Falcon 9 upper stage out of the atmosphere is now ready to launch a new payload at SLC-4E, a launch pad stationed in Vandenberg Air Force Base. B1043’s second orbit-destined payload is a compliment of seven satellites: five are of the Iridium NEXT variety and the remaining satellites make up a scientific mission and technology demonstrator known as GRACE-FO (FO for Follow-On).
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- The two GRACE-FO satellites are stacked atop five Iridium NEXT communications satellites. (NASA)
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- SpaceX is already fairly experienced with launching multi-satellite missions and building custom payload adapters. (NASA)
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- A combination of scientific satellites and five Iridium NEXT communications satellites preparing for launch in May 2018. (NASA)
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- During a normal Iridium NEXT launch, two groups of five satellites are stacked on top of each other. Here, the top stack was replaced by NASA/DLR’s GRACE-FO spacecraft. (NASA)
Following in the footsteps of the original GRACE’s (Gravity Recovery and Climate Experiment) 15 year orbital tenure, GRACE-FO is effectively the same mission with significantly upgraded hardware – the biggest experimental component is actually an advanced laser interferometer designed to measure the distance between the two satellites (roughly equivalent to the distance between LA and San Diego) with the precision of a single micrometer (10-100x smaller than the width of a human hair). At that level of precision, the pair of satellites can detect minute changes in Earth’s gravity, to the extent that they can actually observe droughts, floods, and ice melt through the change in gravity caused by the movement of large (i.e. heavy) quantities of water. If the experimental laser ranging technology works as intended, it will be at least ten times more accurate than the microwave-ranging technology also installed on the follow-on satellites.
SpaceX’s rocket fleet makes way for Block 5
On the SpaceX side of things, Falcon 9 B1043 will be expended after dutifully completing the launch of Iridium-6/GRACE-FO, although the presence of grid fins on the rocket indicates that SpaceX will likely continue a regime of soft-landing recovery tests to optimize and flesh out the limits of Falcon 9’s capabilities. At first glance, the tradeoff of expending entire rocket boosters able to be (relatively inefficiently) refurbished for considerably more than two flights seems extreme and inadvisable. However, SpaceX is presumably ravenous for data on the survivable envelope of Falcon 9 performance – particularly reuse – in advance of the complete transition to the rocket’s Block 5 iteration, a significant upgrade likely to come hand in hand with a more pronounced aversion to expendable missions given each booster’s design lifespan of 10 to 100 missions. At that level of reusability, expending Falcon 9 Block 5s would truly become comparable with the absurdity of trashing an airliner after one or a handful of flights, an (in)famous talking point used by Elon Musk over his years of public SpaceX discussions.
The rocket displays its gritty, beautiful suit of soot ahead of its final launch. (Pauline Acalin)
Thus, if SpaceX can gather data that might enable future Falcon 9 Block 5 recoveries by expending much less valuable Block 3 and 4 boosters, the payoff would be irresistible once examined with a long-term outlook. In the sense that Block 5 may be capable of magnitudes more flights with considerably cheaper refurbishment, the literal elemental value of the hardware – in the likely event that Block 5 production is more capital-intensive than Block 3/4 – is more or less irrelevant for an aversion to expending Block 5 boosters.
Rather, what is lost alongside an expendable Block 5 mission is instead the comparatively vast amount of revenue locked within dozens of additional highly-profitable launches each expended booster could have supported. From that perspective, expending Block 3s and 4s to gather data might be accurately compared to destroying single-pilot Cessnas to improve the utility of a 747 airliner.
After B1043 is expended, only three obvious flightworthy cores will remain outside of the gradually growing Falcon 9 Block 5 fleet (just two boosters, currently). In order of anticipated launch, these three missions are SES-12 (NET May 31), CRS-15 (NET June 28), and the Crew Dragon in-flight abort test (NET Q4 2018). Barring the unexpected refurbishment of an older flight-proven core for a third mission, these final three missions will bring to a close the inherently temporary era of partially-reusable SpaceX rockets – in the words of Elon Musk, Block 5 would thus signify that SpaceX has moved from “the dog that caught the bus” to, perhaps, the dog that caught the bus and then learned how to drive and maintain it. Somewhere in the middle of those final throes of old-guard Falcons will be an ever-increasing cadence of Block 5 launches and re-launches, likely including the first manifest-necessitated reuse of a Block 5 booster sometime this summer.
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- Falcon 9 B1045 shows off its own Fairing 2.0 ahead of the launch of TESS. (NASA)
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- Chuck Bennett captured Mr Steven conducting high-speed maneuvers with its new, yellow net installed, May 17. (Charles Bennett/@chuckbennett)
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- Not nearly enough net, as it turned out. (Pauline Acalin, May 2018)
Meanwhile, despite the sealed fate of the rocket’s booster, tomorrow’s launch will debut fairing-catcher Mr Steven’s new and improved net. With the introduction of an upgraded net and what can only be described as back-to-back days of relentless ocean-going practice over the last two weeks, it’s entirely possible that Iridium-6/GRACE-FO will be able to lay claim to the first successful catch of a payload fairing following an orbital rocket launch. Fingers crossed.
Follow the mission live on SpaceX’s webcast at 12:30 pm PST on Tuesday, May 22, and make sure to check back at Teslarati over the course of the week as photographer Pauline Acalin covers Mr Steven’s return to Port of San Pedro.
Follow us for live updates, behind-the-scenes sneak peeks, and a sea of beautiful photos from our East and West coast photographers.
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Elon Musk
Elon Musk just set a condition that could end Falcon 9 as we know it
Elon Musk says SpaceX will finally retire Falcon 9 once Starship flies reliably every week.
Elon Musk gave the clearest timeline yet for retiring Falcon 9, SpaceX’s workhorse rocket.
The comment came in a reply on X, where Musk wrote that “once Starship is flying reliably several times per week, it makes sense to shift super scarce SpaceX engineering and production resources to Starship to get launch rate to several times per day, which means winding down Falcon.” He was responding to physicist Casey Handmer, who noted that NASA is reportedly uneasy about SpaceX phasing out Falcon after building what Handmer called the most successful launcher ever, with the fleet nearing 1,000 total launches.
Now @SciGuySpace reports NASA is in a tizzy because after running the most successful launcher ever for more than a decade and nearing 1000 launches, @SpaceX is planning to retire Falcon in favor of Starship in a few years.
Sorry, NASA, you’ve had 15 years to burn down the… https://t.co/uCNoMwK0v9
— Casey Handmer (@CJHandmer) August 22, 2026
Falcon 9 is still SpaceX’s busiest vehicle by far. The company is on pace for roughly 140 to 145 Falcon flights this year, following 165 in 2025, president Gwynne Shotwell told Time earlier in 2026. She has already said Falcon flights would “tail off” as Starship comes online, while reports indicate that SpaceX has stopped booking new Falcon 9 launches past 2028 and halted production of some expendable Falcon hardware, according to Bloomberg.
It’s worth noting that Musk’s post is a condition, and not a countdown on when Falcon will retire. Starship has not yet flown weekly, let alone daily. Its most recent flight in July ended with a soft splashdown in the Indian Ocean, a milestone Musk pointed to earlier this month when he said the vehicle’s heat shield problem was effectively solved. SpaceX towed that ship to Christmas Island for inspection, and the next flight, Flight 14, is aimed at putting Starship into orbit for the first time. A tower catch attempt for the upper stage has been pushed back to what Musk has called “a few months” away.
SpaceX and a new Trump order that could rewrite the next decade of launches
The gap between Falcon’s role today and Starship’s promised role tomorrow matters most to NASA. Falcon and its Dragon capsule remain the only way the agency rotates astronauts to and from the International Space Station, and Starship is not certified to carry NASA crews. Musk’s post did not address how that handoff would work if Falcon winds down before a crew-rated Starship variant exists. The timing lines up with Musk’s other recent Starship comments. Two days before the Falcon post, he told a different X user that SpaceX is aiming for more than 30 Starship launches a day by 2030, or roughly 10,000 a year, a figure tied to the Trump administration’s new push for higher national launch cadence. Falcon, which took over a decade to reach its first 100 launches, was never built to approach that kind of volume.
For now, Falcon 9 keeps flying at a near-record pace while Starship works to prove it can do the job Musk has already picked out for it.
Tesla Cybercab is set to launch in Austin, Texas, on September 3, as the company has officially started sending out invitations to a dedicated event it will hold in the city where its headquarters is located.
The Cybercab is Tesla’s dedicated ride-sharing vehicle: it features just two seats and has no steering wheel or pedals. It is aimed at fully autonomous passenger transport, and will operate in the Robotaxi fleet alongside the Tesla Model Y, which has been performing driverless rides for real-world passengers for more than a year.
Thank you so much @Tesla for inviting us to the Cybercab launch in Austin! 🤠 pic.twitter.com/F1rAR8zd5O
— TESLARATI (@Teslarati) August 22, 2026
The launch of the Cybercab marks the next chapter in Tesla’s autonomy story. The company has been developing autonomous transport for years with its Full Self-Driving (Supervised) platform, which is available in any vehicle the company has built with the proper hardware and software capabilities.
Its capabilities vary by hardware and software version, but Tesla says its latest hardware version, known as AI4, can deliver full autonomy. However, future vehicles will operate with even more robust hardware packages, as Tesla will develop AI4.5 and AI5 for even more capability in its vehicles.
Following a report from The Information that surfaced earlier this week, the writing was on the wall that Tesla was set to launch Cybercab in the near term. The report stated Tesla could launch Cybercab as soon as the end of August. Tesla came close and has booked it for September 3.
The big thing with this event being scheduled is not necessarily that Tesla is launching a new vehicle, but instead that it is launching a vehicle that has no steering wheel or pedals and will operate exclusively on a self-driving program that is evidently nearing full autonomy. If the event allows vehicles to take passengers on public roads and drop them off wherever they please within the City of Austin, it will be a drastic advancement in the company’s self-driving story.
People have ridden in Cybercab previously: Tesla had the “We, Robot” event in October 2024, which allowed people to experience fully autonomous rides in a closed circuit at Warner Bros. Studios in Burbank.
🚨 Ride in a Tesla Cybercab with us
— TESLARATI (@Teslarati) May 11, 2025
Additionally, Tesla launched employee rides in Cybercab in July.
It’s a drastic step forward for Tesla, whose CEO, Elon Musk, has promised for years that the company would release a fully autonomous vehicle and platform capable of allowing drivers to relinquish any responsibility behind the wheel.
Elon Musk put a number on where he thinks SpaceX’s Starship program is headed by 2030, replying on X a day after President Trump signed a memo pushing the country toward 1,000 space launches and reentries a year.
The exchange started when Aaron Burnett, co-founder of propulsion startup Mach 33, posted that “1,000 launches/reentries is the goal,” quoting White House science adviser Michael Kratsios on the newly signed National Space Transportation Policy. Burnett noted that the FAA’s own bull-case forecast reached only 385 annual launches by 2030, while his firm’s conservative model already put SpaceX alone near 940. Musk responded, “We’re aiming to reach 30+ Starship launches/day in 2030, which is ~10k annualized. Still tiny numbers compared to airplane flights!”
We’re aiming to reach 30+ Starship launches/day in 2030, which is ~10k annualized.
Still tiny numbers compared to airplane flights!
— Elon Musk (@elonmusk) August 21, 2026
That figure is specific to Starship, the rocket SpaceX is still developing for orbital and lunar missions, not the Falcon 9 fleet that carries most of the company’s current launch volume. Starship has flown twice this year, a slower pace than the four and five flights SpaceX managed in 2024 and 2025. Getting from two flights a year to 30 a day is the scale of jump the new federal policy is meant to clear regulatory room for.
Trump’s memo, signed Thursday, directs agencies to identify new launch and reentry sites on federal land, including a new reentry site within 90 days, and to speed up the permitting and environmental reviews that have long slowed cadence growth. It also sets a goal of returning American astronauts to the moon by 2028 and placing initial lunar base elements by 2030, tying the launch buildout directly to NASA’s Artemis program.
SpaceX has already been pushing the FAA toward higher numbers on its own. The agency approved up to 44 annual Starship launches from Kennedy Space Center in February, on top of a 2024 review that raised the cap at Starbase in Texas to 25 a year. Those approvals cover a fraction of the 10,000 annual flights Musk is now describing, which shows how far current permitting still sits from the administration’s stated target.
The near-term test of all this is more modest. SpaceX cleared a full-duration, six-engine static fire on its next Starship vehicle this week, the last major hardware checkpoint before Flight 14, which is targeting no earlier than August 28 and is expected to attempt the vehicle’s first full orbital mission. Musk said last week that a tower catch of the upper stage is still probably months away, a reminder that the immediate roadmap remains far more incremental than the daily launch numbers he just posted.
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Elon Musk just set a condition that could end Falcon 9 as we know it
Tesla will launch Cybercab on September 3
