News
SpaceX Falcon 9 Block 5 booster ends launch #2 with spectacular dawn return
SpaceX Falcon 9 booster B1049 has completed its second successful launch and landing with a spectacular dawn return to Port of Los Angeles, where engineers and technicians will work to remove the rocket’s grid fins and landing legs and prepare the vehicle for transport to the company’s Hawthorne, CA factory and refurbishment facilities.
Once post-recovery processing is complete and B1049 is safe and snug inside one of SpaceX’s refurbishment facilities, the booster can be expected to be ready to perform its next (third) orbital-class mission perhaps just 2-3 months from now, whether or not there is a mission that needs its support.
Just Read the Instructions has now docked, carrying twice-flown Iridium-8 booster. Beautiful sunrise arrival. #spacex pic.twitter.com/OAi77wm3XT
— Pauline Acalin (@w00ki33) January 13, 2019
Just ~48 hours after the Block 5 booster’s second successful launch and landing, this time aboard drone ship Just Read The Instructions (JRTI) after supporting the historic Iridium-8 mission, JRTI pulled into Port of Los Angeles with Falcon 9 in tow, backlit by a picturesque California sunrise. In September 2018, the same booster (B1049) successfully completed its launch debut from SpaceX’s LC-40 launch pad in Cape Canaveral, Florida before landing safely aboard drone ship Of Course I Still Love You (OCISLY).
This marks the second time ever that a Falcon 9 booster has launched from both coasts (Cape Canaveral, FL and Vandenberg, CA) and landed on both SpaceX drone ships (JRTI and OCISLY), an event that will likely become increasingly common as the company’s growing fleet of Falcon 9 Block 5 boosters become increasingly flexible and interchangeable. It’s also equally possible that – over time – a sort of regional fleet of Falcon 9s will ultimately accumulate at each of SpaceX’s three launch pads, ensuring that there is always a rocket ready and waiting to launch a customer payload with short notice and minimal production or refurbishment-related delays.
- Falcon 9 B1049 and a few SpaceX recovery technicians serve as an excellent since of scale for launch photos. (Pauline Acalin)
- Falcon 9 B1049 returned to Port of Los Angeles after its second successful launch and landing in four months. (Pauline Acalin)
- Falcon 9 B1049 seen vertical at SLC-4E prior to its second launch, the eighth and final Iridium NEXT mission. (SpaceX)
Among many of Falcon 9’s almost sculpture-like qualities, Teslarati photographer Pauline Acalin’s photos of the booster’s return exemplify just how reliably unperturbed Block 5 appears after performing multiple orbital-class launches, far from a rocket that traveled to ~90 km (~56 mi) while reaching speeds of 1.9 kilometers per second (6830 km/h, 4300 mph). SpaceX now reliably reuses Falcon 9’s titanium grid fins and landing legs with little to no refurbishment or touching up between launches and should eventually be able to retract the rocket’s legs after recovery, further cutting down on processing and refurbishment times.
Greater reusability, greater reliability?
As of today, it’s unclear how big of a role Falcon 9 Block 5 booster refurbishment has played into several hardware-readiness-related delays to several recent flight-proven Falcon 9 launches (SSO-A, SAOCOM 1A, and Iridium-8), but it is ultimately a fundamental reality of all manufacturing that rushing or ‘expediting’ work will typically hurt product quality and reliability and generally widen the cracks that mistakes can slip through. Interestingly, having a truly large fleet of flight-proven Falcon 9 Block 5 rockets on hand could dramatically improve the overall launch-readiness of Falcon 9 and Falcon Heavy and minimize chances of processing delays across the board.
SpaceX employees may already be to a point where they can plausible take stock of the company’s already-significant fleet of flight-proven Falcon 9s (B1046-B1049) to decide which booster is closest to launch-readiness before assigning it to a given mission. With four proven boosters on hand as of January 2019, options are fairly limited and regionality is likely to factor heavily into which booster launches which mission – there is no real cushion if problems arise with a given rocket or its preceding launch suffers its own delays. However, once that Falcon fleet grows to something like 10 or 15 booster, SpaceX could conceivably be able to guarantee booster availability regardless of prior launch delays or a given rocket’s condition after landing.
- (Pauline Acalin)
- A bittersweet sunrise as Falcon 9 B1049 arrives in port. (Pauline Acalin)
- (Pauline Acalin)
- (Pauline Acalin)
This may well be far less sexy than SpaceX’s ultimate goal of drop-of-the-pin, 24-hour reusability for Falcon and BFR boosters, but the fundamental fact of the matter is that the company may well be able to derive a vast majority of that practice’s value by simply having a large, well-kept fleet of Falcon 9 boosters that are at least moderately reusable. For a hefty chunk of the probable near-term future, a large fleet of rockets each capable of launching every 30-60 days would likely be able to support launch cadences that are currently unprecedented for a single company or rocket (i.e. dozens of launches per year).
Time is money, of course, so minimizing the turnaround time of Falcon boosters will ultimately remain a major priority, especially as the prospect of Starlink launches loom.
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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.
News
Tesla Cybercab and Semi have more in common than you might think
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.
Elon Musk
Elon Musk weather update tips Tesla Roadster speculation into Plaid Mode
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.







