In a rare interview, Elon Musk has revisited the story of ‘employee number one’ at SpaceX: Chris Thompson, a mechanical engineer who joined the company in 2002 when it consisted of little more than a hangar and a dream of interplanetary travel. The anecdote, delivered with characteristic bluntness during a London roundtable, serves as a reminder of the raw technological ambition now attracting serious financial attention from UK investors.
Thompson, Musk recounted, was tasked with designing the first Merlin engine with a budget of “effectively nothing”. The pressure cooker environment, he noted, forged a culture that has since produced the Falcon 9, Starship, and a launch cadence that has reshaped the global satellite industry. That same culture is now being scrutinised by British pension funds and venture capitalists who see the Martian economy not as science fiction but as a future asset class.
“We are talking about the first trillion-dollar industry in space,” said Dr. Amara Singh, a space economist at the University of Cambridge. “The UK has a strong heritage in satellite manufacturing and insurance. The question is whether we can pivot to the extraction and transport of resources beyond Earth.”
Musk’s narrative was not merely nostalgic. It framed SpaceX’s next milestone: the commercial establishment of a self-sustaining city on Mars by 2050. For UK investors, this translates into immediate opportunities in launch services, in-orbit manufacturing, and the supply chain for habitats and life support systems. The UK Space Agency recently allocated £10 million to feasibility studies for off-world mining, a fraction of the estimated £2 billion needed for a Martian outpost, but a signal of intent.
Critics, however, point to the physics. Mars has a surface gravity 38% of Earth’s, an atmosphere 1% as dense, and average temperatures below -60°C. “The energy required to keep a human alive on Mars is staggering,” said Dr. Helena Vance, Science & Climate Correspondent. “You are essentially building a sealed ecosystem against a lethal vacuum with extreme temperature swings. The technological solutions exist in prototype, but scaling them economically is the hardest engineering problem humanity has ever faced.”
Yet the allure remains. SpaceX’s valuation has soared past $180 billion, with secondary markets suggesting UK institutional investors are quietly accumulating stakes. The logic is simple: if space becomes a domain for resource extraction, early entrants will dictate terms. Platinum group metals in asteroids, helium-3 on the Moon, and silicon for solar panels are all targets.
Musk’s punchline was blunt: “The window of opportunity for life to become multiplanetary is now. If we hesitate, the window closes.” For UK investors, the question is not whether the Martian economy will exist, but whether they will be part of its first wave. The answer, as with all frontiers, depends on risk appetite and the stubbornness of the human spirit. And on engineers like Chris Thompson, who started with nothing and built a rocket to the stars.
The roundtable ended with a standing ovation. The numbers behind the narrative will be scrutinised in boardrooms across the City of London this week. The physical reality of space remains unforgiving. But the calm urgency of the message was unmistakable: the biosphere is finite, but the solar system is not.
