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SpaceX sues US government to protest mystery launch or rocket R&D contracts
SpaceX has filed a lawsuit – technically a “Bid Protest Complaint” – against the United States government and successfully petitioned for the file to remain sealed, restricting access to additional case details for the time being.
This development follows a quiet series of bid protests SpaceX filed with the Government Accountability Office (GAO) in February 2019, shortly after NASA announced that it had awarded ULA a ~$150M launch contract for Lucy (a robotic Trojan asteroid explorer). SpaceX believed that it could perform the mission at a “dramatically lower” price, potentially saving the federal government tens of millions of dollars. SpaceX withdrew both of its GAO bid protests without comment on April 4th. Whether those prior protests are related to SpaceX’s May 2019 lawsuit is unclear.
Adding even more complexity and uncertainty to the series of events, NASA awarded SpaceX the launch contract for its Double Asteroid Redirection Test (DART) spacecraft on April 20th, about two weeks after SpaceX retracted its Lucy protests. The cause-and-effect relationship between both events is wholly ambiguous. Perhaps SpaceX withdrew before the company was made aware of their DART win. Perhaps they withdrew their protest because they learned of NASA’s award.
Regardless of what did or did not trigger the contract award, the fact remains that SpaceX’s DART launch will cost NASA ~$70M, less than half the price of ULA’s ~$150M Lucy launch contract. As such, it seems likely that launching Lucy on Falcon 9 could have saved the US government as much as $50M, assuming an expendable profile (~$100M per SpaceX’s latest GPS III launch contracts).
Returning to the topic at hand, the simplest explanation is that SpaceX’s GAO bid protests and May 2019 lawsuit are in some way related. Although SpaceX was clearly correct when it insinuated that it could launch Lucy far more affordably than ULA, the company was criticized for its GAO protests because they effectively froze – or at least complicated – work on the NASA spacecraft. In the event that the withdrawals and lawsuit are related, SpaceX would have backed down after entering into the slow GAO protest process, essentially conceding the contract to ULA and allowing spacecraft work to continue without disruption.
Replaced with a lawsuit against the US government, SpaceX could instead be attempting to change the processes that lead NASA to award ULA the Lucy launch contract in spite of potential savings on the order of ~$50M. SpaceX has done something similar once before when it sued the US Air Force for its uncompetitive launch procurement processes, a largely successful endeavor that has helped force some competition back into USAF/DoD launch contracts.
However, there are several additional possibilities for the actual subject of SpaceX’s latest sealed suit. Most recently, NASA distributed ~$46M among 11 companies for studies and prototypes of lunar landers, transfer vehicles, and in-space refueling technology. SpaceX tied with Aerojet Rocketdyne for the least substantial awards out of those 11 companies, each receiving funds for a single study, while most other awardees were contracted for multiple studies and/or prototypes. This is a stretch, however.
The most likely alternative to a continuation of SpaceX’s Lucy protest is a lawsuit focused on the USAF’s latest EELV/NSSL development contracts and its proposed continuation of block-buy launch procurement. Of the four companies involved, Blue Origin and SpaceX have both criticized the USAF for a variety of reasons. Both did agree, however, in their dislike of the USAF’s inexplicable desire to award all launch contracts to two victors, despite there being as many as four different launch vehicles that could feasibly compete for those several-dozen contracts.
For now, details of SpaceX’s latest lawsuit will remain sealed, leaving the company’s motivations veiled in mystery. SpaceX’s next USAF mission could occur as early as June 22nd. Known as STP-2, it will mark Falcon Heavy’s third flight, the rocket’s first defense-related launch, and the USAF’s first use of flight-proven SpaceX boosters. If successful, SpaceX will effectively be able to compete with ULA for all conceivable future launch contracts.
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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
