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SpaceX could begin testing its Mars rocket in Texas by late 2018, early 2019
On the heels of a successful wet dress rehearsal for Falcon Heavy, SpaceX’s President and COO Gwynne Shotwell spoke briefly about SpaceX for an aerospace conference located at Texas’ Academy of Medicine, Engineering & Science. Ars Technica’s senior spaceflight editor Eric Berger was in attendance and provided a rough outline of live tweets during the first group of presentations.
While the phrasing cannot provide absolute confirmation, Berger summarized a statement by Shotwell suggesting that SpaceX’s Boca Chica, Texas launch site, currently in the early stages of construction, could be ready to host “vehicle tests” as soon as late 2018, early 2019. At this point in time, based on comments from Shotwell and CEO Elon Musk, it can be reasonably assumed that SpaceX’s Texas launch facilities will be dedicated mainly to the company’s interplanetary colonization efforts, and will probably be tailored to support the testing and eventual launches of BFR/BFS.
Some news from Shotwell: Brownsville launch site ready for vehicle tests in late 2018, early 2019. Move to launch site after that.
— Eric Berger (@SciGuySpace) January 11, 2018
After nine months of earnest construction and rehabilitation, SpaceX’s LC-40 pad was recently reactivated and has since supported two launches without any major hitches. At the same time, LC-39A in flux in order to support launches of SpaceX’s new Falcon Heavy rocket, the size of which required some concomitant upgrades to multiple ground systems. With both of those major tasks now effectively complete, SpaceX’s pad construction team is free to either refocus their efforts towards Boca Chica. Over the past several months, Boca Chica has seen a gradual but consistent level of development, mainly by way of unaffiliated SpaceX contractors. These changes have been dutifully tracked over the last several years on NASASpaceflight.com forums by a handful of friendly local residents interested in the changes coming to Boca Chica and Brownsville, Texas, a nearby town.
SpaceX’s Boca Chica facilities and STARGATE dishes (center-left) seen at sunset from the top of the giant crane garage. (anonymous Instagram user)
Most significantly, the last several months have seen three major developments. First and most prominently, a permanent facility called STARGATE externally appears complete and its two large radio communication dishes have been installed nearby. The STARGATE facility is a public-private partnership between the University of Texas at Brownsville (now part of University of Texas Rio Grande Valley) and SpaceX, with the academic components focusing on research that SpaceX undoubtedly has interest in: improved orbital spacecraft tracking and communications. Operationally, SpaceX will use the facilities to communicate with and operate its Crew Dragon spacecraft during launches, set to begin with an uncrewed demonstration mission as early as August 2018.
Second, an absolutely massive trolley crane appeared on SpaceX’s land and was eventually housed in an apparently purpose-built shed. The crane dwarfs anything currently used at SpaceX’s launch facilities and is almost certainly a custom-ordered piece of equipment, and thus would be both expensive and explicitly purposeful. What that purpose might be is currently unknown, but it is entirely plausible that the crane is intended to support initial testing (or even limited manufacturing) of SpaceX’s first BFS prototype rockets. This speculation has now been strengthened by Shotwell’s January 11 2018 comment on potential “vehicle tests” occurring at the site within a year or so, and also meshes with a presentation she gave in October 2017 at MIT. It also fits with Elon Musk’s 2017 IAC comments that BFR construction tooling and facilities were respectively already ordered and under construction.
The boom of the giant crane seen in late 2017, parked at SpaceX’s Boca Chica facilities. (Reddit /u/ ticklestuff)
Third and last, the aforementioned SpaceX-following locals observed the early stages of a solar power install beginning on some of SpaceX’s Boca Chica land in late 2017, and also noted that at least some of its contractors were part of Tesla Solar. Plans and permits for solar power were acknowledged as far back as 2014, although at that point the contractor was Solar City (now a part of Tesla). A handful of months later, NASASpaceflight user and all-around awesome guy Nomadd has installed a webcam on a tall pole with a wonderful view of both the solar installation (now nearly completed) and STARGATE. The acre of solar panels can be expected to produce as much as half a megawatt (MW) at peak sun, likely more than enough to offset a considerable amount of the facilities’ electricity usage even after it begins to be see serious use.
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- A Tesla Energy/Solar City contractor’s vehicle spotted at the Boca Chica solar installation. (NSF /u/ bocachicagal)
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- As of last week, the solar installation appears to be nearly complete. (NSF /u/ Nomadd)
Originally announced as an additional Falcon launch facility in 2014, Boca Chica has remained relatively dormant over the last three years, and it is truly exciting to see activity ramping up. There are admittedly significant barriers that will prevent SpaceX from effortlessly repurposing its Boca Chica pad for BFR, a much larger rocket. If SpaceX intends to do that, they will almost certainly need to pass a significantly updated FAA environmental impact review and account for any remediations that might be required. Still, that is a small ask for for Brownsville’s local government and Texas as a whole, both of which have clearly enjoyed and begun to benefit from SpaceX’s presence in the otherwise unknown area. SpaceX is unlikely to give up on Boca Chica in the near term, so long as Ms. Shotwell maintains her belief that it is effectively the perfect location for BFR launches.
Overall, Shotwell’s comments over the last several months and today in particular are increasingly encouraging, and things are likely to only speed up as 2018 progresses, allowing SpaceX to focus more and more of its expertise on BFR, BFS, and its South Texas testing and launch facilities.
Full disclosure: As Shotwell did not specify which vehicle or vehicles could be expected to begin testing in 2018/2019, it is possible that Falcon 9, not BFR, was the statement’s target. This article should be taken with a grain of salt, as it is educated speculation based upon public information from SpaceX executives and Texas contractors. Teslarati reached out to SpaceX for additional information, but the company was unable to comment further on Shotwell’s presentation at the moment.
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.
Tesla has secured $30 billion in fresh credit lines from Citibank and Wells Fargo in an effort to scale its biggest current projects.
Tesla agreed to a $20 billion three-year delayed-draw term loan facility from Citibank, it announced on Tuesday. Additionally, it signed a five-year, $8 billion revolving credit facility and a $2 billion, 364-day term credit facility with Wells Fargo.
In a filing with the Securities and Exchange Commission (SEC), that it “may draw” from the $20 billion delayed-draw term “from time to time” and “no more than ten times during the 18 months following the closing date.” This loan matures on September 29, 2029.
The five-year revolving facility from Wells Fargo will also be accessed by Tesla “from time to time,” and will become due and payable on September 29, 2031. Tesla can request two separate one-year extensions.
On the $2 billion, 364-day revolving loan, it becomes due and payable on September 28, 2027. Tesla can also increase its additional commitments to an additional $4 billion across the Revolving Facilities. This would increase the total facilities to $14 billion. Tesla said it does not plan to utilize any of these loans in 2026.
Tesla plans to utilize the money to help prop up its ambitions to scale its biggest products, each of which is either in early launch phases or still in development. Of course, we’re talking about Cybercab and Semi, which have launched, and Optimus, which is still under heavy development and working toward initial release.
All three Tesla products have one thing in common: they’ve all required Tesla to build new manufacturing lines for them.
For the Semi, Tesla built a brand new factory in Sparks, Nevada, adjacent to the Tesla Gigafactory. For Optimus, Tesla sunset Model S and X production at the Fremont Factory, which brought an end to the two flagship models, thus creating manufacturing space for the humanoid robot. Finally, Cybercab is being built at Gigafactory Texas and officially entered production earlier this year.
The cash will help Tesla bolster its finances for the continuing development of these products. Tesla said that it forecasts its CapEx to be over $25 billion, up from just over $8.5 billion last year. These loans surely help with that spending.
Tesla Cybercab and Semi have more in common than you might think
Elon Musk weather update tips Tesla Roadster speculation into Plaid Mode
