SpaceX has completed its 60th operational Starlink satellite launch after a rare string of scrubs.
Flying for the 6th time just 66 days after its 5th launch, Falcon 9 booster B1067 lifted off with 54 Starlink satellites on SpaceX’s Starlink 4-34 mission at 8:18 pm EDT, Sunday, September 18th. Five days prior, after unknown issues triggered a delay from a planned September 11th launch attempt, SpaceX attempted to launch the mission for the first time on September 13th.
About an hour before liftoff, lightning conditions forced the company to call off the attempt. On September 14th, also about an hour before liftoff, weather forced SpaceX to call off the second attempt. On September 15th, the third attempt was aborted (by weather) just 29 seconds before liftoff, followed by a fourth weather-related scrub about a minute before liftoff on September 16th. Only after a fifth attempt on September 17th was preempted by a delay to September 18th did SpaceX finally find a gap between Florida’s summer weather.
With dozens of Starlink launches beginning to blur together and SpaceX’s Falcon 9 continuing a relentless and potentially record-breaking streak of successes at a pace that could soon make it the fastest launching rocket in history, it’s hard to be surprised that Starlink 4-34 was completed without issue. Falcon 9 B1067 ascended under power for about three minutes, sent the rest of the rocket on the way to orbit, coasted into space, and returned to Earth with SpaceX’s 68th consecutively successful booster landing.
Falcon 9’s underappreciated upper stage continued into an orbit around 300 kilometers (~190 mi) up, spun itself up end over end, and deployed a 16.7-ton (~36,900 lb) stack of 54 Starlink V1.5 satellites all at once. Following the quick deployment, the rocket’s pair of reusable fairing halves were likely still 10 or 20 minutes away from touching down on the Atlantic Ocean under their GPS-guided parafoils, where they will eventually be scooped out of the water for future flights.
Starlink 4-34 was SpaceX’s 42nd launch of 2022, maintaining an average of one launch every 6.2 days since the year began. It leaves more than 3000 working Starlink satellites in Earth orbit, likely meaning that a majority of all working satellites are owned and operated by SpaceX less than three full years after the company began operational launches.
Up next, Next Spaceflight and Spaceflight Now report that SpaceX has two more Starlink launches (4-35 and 4-36) tentatively scheduled before the end of September. As of September 15th, both reported that those missions were working towards launches on September 19th and September 26th – nothing unusual for SpaceX in 2022.
What was unusual, however, was both unofficial manifests’ agreement that SpaceX intended to use the same pad – Cape Canaveral Space Force Station’s LC-40 – to launch Starlink 4-34, 4-35, and 4-36. Even assuming that those schedules were predicated upon Starlink 4-34 launching on September 13th, before all of its weather delays, SpaceX would have had to break LC-40’s 7.7-day turnaround record by around ~25% and complete a second launch just seven days after that.
Starlink 4-34’s delays have thrown that plan into question, but the fact that SpaceX thought it was possible in the first place suggests that the company has plans to squeeze even more performance out of LC-40 – already its most important pad from the perspective of launch cadence. Launch photographer Ben Cooper now reports that Starlink 4-36 could launch in late September or October. If it slips into October, SpaceX has a rapid-fire pair of customer satellite launches scheduled on October 5th and 13th that will probably take precedent over any internal Starlink mission.
With only 16 days left before LC-40’s next commercial launch and NASA’s Crew-5 launch taking over SpaceX’s other East Coast pad until October 3rd, SpaceX would have to launch Starlink 4-35 and 4-36 just four or five days apart (and one just 4-5 days after Starlink 4-34) to avoid delaying one of the Starlink missions well into October, avoid unnecessarily delaying commercial launches for paying customers, and ensure that those customers don’t have abruptly agree to be commercial guinea pigs for extra quick LC-40 turnarounds.
Starlink 4-35 is now tentatively scheduled for September 23rd, making a Starlink 4-36 delay more likely but not fully ruling out a launch attempt before the end of the month.
News
SpaceX set to launch astronauts and a classified Falcon Heavy mission on the same day
SpaceX plans three launches Thursday, including Crew-13 astronauts and Falcon Heavy’s first classified NRO mission.
SpaceX is lining up one of the busiest single days in its history, and the company offered a preview on Wednesday morning with a simple post on X: “Sunrise at pad 40.” The video and photos show Falcon 9 standing at Space Launch Complex 40 at Cape Canaveral, roughly a day before it is scheduled to carry four astronauts to the International Space Station.
That launch is only the first of three SpaceX missions planned for Thursday, October 1, across both coasts.
Sunrise at pad 40 pic.twitter.com/J7Qme4VvIX
— SpaceX (@SpaceX) September 30, 2026
Crew-13 is targeting liftoff at 11:10 a.m. ET, with a backup opportunity Friday at 10:47 a.m. ET. NASA astronaut Jessica Watkins will command the mission, with NASA’s Luke Delaney as pilot and Canadian Space Agency astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov serving as mission specialists. According to NASA, Dragon is set to dock with the forward port of the station’s Harmony module around 8 p.m. ET, less than nine hours after launch. Watkins is the only member of the crew who has flown before, and Kutryk will become the first Canadian to reach orbit through NASA’s Commercial Crew Program.
The Falcon 9 booster is flying for the third time after supporting Crew-12 and a Starlink mission, and it will attempt a landing at Landing Zone 40 beside the pad. That site made its debut in February when the Crew-12 booster touched down there, as Teslarati reported at the time. Crew-13 will relieve the Crew-12 astronauts, who have been aboard the station since the middle of February.
On the West Coast, another Falcon 9 is scheduled to lift off from Vandenberg Space Force Base in a window running from 2:18 to 3:16 p.m. ET, a flight NASASpaceflight lists as a Transporter rideshare mission.
The day is set to close at 11:53 p.m. ET, when Falcon Heavy launches from Launch Complex 39A with NROL-97, the first National Reconnaissance Office payload ever to fly on the rocket. SpaceX rolled the vehicle out to the pad Tuesday night. Its two side boosters, which previously flew GOES-U, ViaSat-3 F3 and NASA’s Roman Space Telescope, will return to Landing Zones 1 and 2, while a new center core will be expended in the Atlantic. The Roman launch took place on August 30, so NROL-97 will come barely a month later as Falcon Heavy’s third flight of 2026 and 14th overall.
NASA taps SpaceX to launch the telescope that could unlock new worlds
If all three Florida boosters land as planned, it would be the first time the Space Coast has seen landings at LZ-40, LZ-1 and LZ-2 on the same day, according to the Orlando Sentinel, which has warned residents in Brevard, Orange and Volusia counties that more than one sonic boom is possible.
The schedule arrives just three days after Starship reached orbit for the first time on Flight 14 from Starbase, Texas, deploying 26 Starlink V3 satellites. If Thursday’s missions stay on time, SpaceX will have flown Starship, Falcon 9 and Falcon Heavy from four different pads in about four days.
Crew-13 is also the start of a longer run for Dragon. NASA recently added Crew-15, Crew-16 and Crew-17 to SpaceX’s contract in a $946 million modification, keeping Dragon as the agency’s only operational ride to the station while Boeing’s Starliner remains grounded.
Although the two vehicles are built for completely different use cases, Tesla utilized engineering expertise while developing both the Cybercab and Semi to build a thermal architecture that would fit both vehicles. Of course, with some slight revisions.
The development was noted by Lars Moravy and Dan Priestley last week at Tesla’s Semi Handover event in Sparks, Nevada, where the company showed off its dedicated production facility for the Class 8 truck.
🚨 Tesla designed the integrated thermal systems for Cybercab and Semi at the same time as the vehicles were both in development
Tesla wanted to build one thermal system that worked with both vehicles, apart from small modifications.
Semi and Cybercab share parts 🤯 pic.twitter.com/KmzSsUbrcg
— TESLARATI (@Teslarati) September 25, 2026
Tesla’s decision to develop one thermal architecture for both the Cybercab and Semi is one of the more revealing engineering choices in the company’s 2026 lineup:
“We designed it at the same time we designed the Cybercab and we said okay we’re going to take our most efficient vehicle and our biggest vehicle and we’re going to take one thermal system and make it work for both.”
Core parts, meaning the compressor, pumps, and heat exchangers, are shared, with only modest changes to cooling-loop sizing and a larger radiator on the truck. The result, they said, is a compressor and thermal stack already proven across millions of miles, delivering “reliability from day one.”
Priestley also highlighted a practical payoff of the indirect design:
“There’s no AC lines, there’s no refrigerant lines…It comes from the factory fully charged, sealed with refrigerant, and it just exchanges coolant. It doesn’t actually run refrigerant up to the front of the vehicle.”
This eliminates potentially leak-prone plumbing that would otherwise require hands-on service, reducing overall uptime and potentially cutting into business margins. The megamanifold runs cabin HVAC and every powertrain heating and cooling loop at once, recapturing waste heat from motors and the battery instead of dumping it the way a diesel engine does.
The approach is just the latest chapter in a continuing story of stretching thermal solutions across wildly different vehicles. Model Y’s Octovalve evolved into the Super Manifold used on Cybertruck, and later Model S/X refreshes. Cybercab then introduced Supermanifold V3, which Tesla says is 80 percent automated to build and 38 percent more efficient than typical automotive thermal systems.
This thermal system is also shared with Cybercab – one thermal system for both our most efficient vehicle & our biggest vehicle
— Tesla Semi (@tesla_semi) September 25, 2026
Tesla has done the same with the 4680 cells, both being utilized in the Cybertruck and Semi, and with heat-pump compressors that Priestley noted were already common across the passenger-car fleet.
Concurrent development of crucial vehicle elements buys scale and reliability that a truck-only thermal system could not match. High-volume passenger car parts are cheaper and more accessible, which can give fleets a sealed, low-maintenance loop of operation from their first day of operation.
For owners and operators, that translates into less energy spent on cabin heat in the colder months, fewer refrigerant-related repairs, and a thermal architecture already stress-tested at passenger-car volumes before the first high-volume Semi left the lines in Nevada.
Tesla CEO Elon Musk certainly tipped off some details of the Tesla Roadster event with a broadening of information regarding the company’s decision to delay the unveiling for two weeks.
For years, people have speculated about what the Roadster will be capable of. While there have been plenty of things said about what it *could* do, we have not seen or been told by Tesla what it will actually be capable of.
However, over the past few days, Tesla’s weather updates have truly pushed the speculation into Plaid Mode, basically all but confirming the car will have some sort of aerial capability — whether that would be hovering or fully flying remains to be seen — but it definitely seems that it will be able to leave the ground intentionally.
“Because this event can only be held outdoors…”
Tesla posted on Monday that it would delay the Roadster event until October 15, and it indicated that it had to do this because the event “can only be held outdoors.”
With the potential SpaceX collaboration to develop cold-gas thrusters that will help the vehicle go airborne, doing this indoors is probably not a safe, or even plausible, possibility.
Roadster event update
We’ve been tracking the weather closely with local meteorologists, but given the severe conditions predicted & because this event can only be held outdoors, we’ve made the difficult decision to reschedule.
New date is October 15. Additional details to…
— Tesla (@Tesla) September 28, 2026
FAA Airspace Restriction
The FAA gave Tesla a Temporary Flight Restriction (TFR) for 10,000 feet above ground level, much higher than the typical 2,000-foot restrictions that are usually placed at SpaceX’s McGregor, Texas site.
Tesla Roadster event requires restricted airspace, and the FAA obliges
Some have said that this massive increase is due to Tesla’s need to restrict unauthorized drone use for spying on the event.
Elon Admits High Winds
“Due to high winds, the new Roadster demo is postponed by 2 weeks,” Musk said in a post on X yesterday.
Due to high winds, the new Roadster demo is postponed by 2 weeks https://t.co/dV3ojDh1iT
— Elon Musk (@elonmusk) September 30, 2026
A reply reading, “What’s strong wind got to do with a car demo with four grounded wheels?” was directly below Musk’s post, satirically and sarcastically probing for more details.
All signs are pointing toward an aerial demonstration for the Roadster.
SpaceX set to launch astronauts and a classified Falcon Heavy mission on the same day
Tesla Cybercab and Semi have more in common than you might think
