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Of Mice And Musk: A SpaceX Odyssey
Elon Musk has dreamed of a human colony on Mars since he was a young man. Today, his SpaceX company is taking the first steps toward achieving that dream.
As Ashlee Vance tells it, one wall of Elon Musk’s office at SpaceX headquarters in Hawthorne, California, contains two posters of Mars. On the left is Mars as it exists today – a frozen, lifeless orb. On the right is Musk’s vision of Mars as it could be — a happy place inhabited by humans who frolic on verdant continents surrounded by oceans.
“I would like to die thinking that humanity has a bright future,” he tells Vance while eating cookies and cream with sprinkles on top. “If we can solve sustainable energy and be well on our way to becoming a multi-planetary species with a self-sustaining civilization on another planet—to cope with a worst-case scenario happening and extinguishing human consciousness— then I think that would be really good.” No one has ever accused Elon Musk of thinking too small.
At the turn of the 21st century, Musk had two Martian fantasies. One was to send a colony of mice to the Red Planet and bring them back again, along with their interplanetary babies. The other involved building a greenhouse on Mars and letting Earthlings see the plants inside grow over the internet. Each venture required at least one if not two rocket ships.
He and a coterie of friends traveled twice to Moscow, once in 2001 and again in 2002, trying to purchase surplus Russian rockets that could be refurbished for the Martian missions. The first time did not go well. Recalls Jim Cantrell, one of the team that traveled to Moscow with Musk, “One of their chief designers spit on me and Elon because he thought we were full of shit.” On the second excursion, Musk became convinced the Russians he was meeting with were only interested in fleecing a gullible American with too much money and too few brains.
SpaceX CEO Elon Musk inside the Dragon V2 [Source: SpaceX]
On the way home from the second failed mission, Musk astonished his team by announcing, “Hey, guys, I think we can build this rocket ourselves.” In June 2002, Space Exploration Technologies, popularly known as SpaceX, was formed to build a cheaper rocket that could carry small payloads into space for paying clients on an average of once a month. The only problem? It had no rocket.
Such trifles were never matters to hold Elon Musk back. He assembled a team of committed rocket engineers and set about accomplishing, with millions, what NASA spent billions doing. Musk’s principle talent, apart from concocting outrageously impossible dreams, is finding people to work for him who are ready, willing and eager to give up all semblance of a normal life in exchange for insane working hours in remote locations. One test launching area was set up in the middle of Texas and another on far away Kwajalein Island, the largest island in an atoll between Guam and Hawaii that is part of the Marshall Islands.
“I would like to die thinking that humanity has a bright future”
SpaceX CEO, Elon Musk
Musk is not a man without a sense of humor. He dubbed his new rocket Falcon 1, paying homage to the Millennium Falcon of Star Wars fame. On its first flight on March 24, 2006, it crashed back to Earth after only 25 seconds. SpaceX employees dutifully donned scuba gear to retrieve some of the pieces from the ocean and set about rebuilding for another attempt.
Musk responded by hiring more engineers and starting work on a brand new rocket, the Falcon 9, that featured one large central rocket surrounded by 8 smaller rockets. Despite the failure of Falcon 1, Musk was already busy positioning the company to bid on NASA contracts to resupply the International Space Station.
On September 1, 2008, Falcon 1 flew its first successful mission. SpaceX was a viable commercial company at last but one that was rapidly going broke. At the end of 2008, Musk knew he would have to choose between SpaceX and Tesla. Alone, one of them might survive. Together? The odds were, both would fail. Musk worried that Tesla would be bought out by one of the Big Three automakers and become just a small part of a giant company.
Later in 2008, Tesla was within hours of defaulting on its payroll obligations. If that happened, Musk’s personal fortune would be gone, along with Tesla and SpaceX. He asked for help from venture capital group VantagePoint but was rebuffed. That’s when Musk put all his chips on red and let them ride.
Source: SpaceX
With all of his dreams and aspirations on the line, Musk executed a colossal bluff. He told investors he would put in $40,000,000 of his own fortune to keep the business going — $40,000,000 he didn’t have. Based on his assurances, other investors agreed to put up $20,000,000 more in financing and the crisis passed. A few weeks later, NASA awarded SpaceX a $1.6 billion contract to do twleve ISS re-supply missions.
Antonio Gracias, a Tesla and SpaceX investor and one of Musk’s closest friends, watched all of this at close hand. He says 2008 told him everything he would ever need to know about Musk’s character. “He has the ability to work harder and endure more stress than anyone I’ve ever met,” Gracias says. “What he went through in 2008 would have broken anyone else. Most people who are under that sort of pressure fray. Their decisions go bad. Elon gets hyperrational. He’s still able to make very clear, long-term decisions. The harder it gets, the better he gets.”
Today, SpaceX launches an average of one rocket a month, carrying payloads for many companies and several nations. Its prices undercut those of Boeing, Lockheed Martin, and Orbital Science by a wide margin. Many of its competitors rely on Russian and other foreign suppliers but SpaceX makes its machines from scratch in the U.S.
Its clientele includes Canadian, European, and Asian customers and it has more than 50 flights planned over the coming years worth more than $5 billion. The company remains privately owned, with Musk as the largest shareholder. SpaceX is profitable and is estimated to be worth $12 billion.
Falcon 9 discovery launch from Feb. 2014 at Cape Canaveral, FL [Image credit: SpaceX]
The Falcon 9 has gone from a fantasy to SpaceX’s workhorse. Painted pure white with only an American flag and the SpaceX logo adorning its sides, there’s nothing particularly flashy looking about the Falcon 9. It’s just an elegant, purposeful machine. And to think that for a period of weeks just a few years ago, it’s ability to lead mankind into the dawn of commercial space travel almost died before it was ever born, thanks to a bluff so bold and so daring, it would leave most of us breathless.
Jimmy Buffett once sang, “Read dozens of books about heroes and crooks, and I learned much from both of their styles.” Which one is Elon Musk? Read Ashlee Vance’s book and make up your own mind.
Source: Bloomberg
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
