Doing business in space

Episode Summary

Executive Summary: The episode surveys three linked space-sector stories: the plausibility and economics of asteroid mining, the UK space industry’s uncertainty amid Brexit, and Goonhilly Earth Station’s reinvention through new investment and a deep-space ESA contract. Across interviews, the show argues that falling launch costs, water-as-fuel markets, and private capital could make space industry growth real within 10–15 years, despite policy and infrastructure risks.

Main Topics: Asteroid mining is becoming technically plausible (Priority: 5/5): Martin Elvis explains the "Elvis equation" as a way to estimate how many asteroids are realistically mineable today, emphasizing that improved rockets and higher in-space commodity values could expand the opportunity set. The economics of asteroid resources (Priority: 5/5): The discussion separates two likely early products: precious metals for high-value return and water for in-space use. Water is framed as especially promising because it is abundant in some asteroids and expensive to lift from Earth. Timeline and business model for space mining (Priority: 4/5): The episode outlines a staged pathway: prospecting now, test mining in about a decade, and larger-scale mining around 15 years out, assuming better launchers, scouting missions, and emerging infrastructure. Brexit’s pressure on the UK space sector (Priority: 5/5): Lucy Bertu describes concerns over Galileo, Copernicus, staff and student mobility, recruitment, and loss of EU research funding, while noting calls for clarity from government and the House of Lords. UK space-sector support and spaceport ambitions (Priority: 4/5): Despite Brexit risks, the UK government’s sector deal and planned spaceport funding are presented as positive developments, with Cornwall one of several contenders for a UK spaceport. Goonhilly Earth Station’s transformation (Priority: 5/5): Goonhilly is repositioning itself from historic satellite operations to deep-space communications, radio astronomy, data-centre services, and potential support for a UK spaceport, aided by ESA contracts and private investment.

Key Arguments: Asteroid mining is no longer pure science fiction; the main constraints are launch capability, prospecting, and economics rather than basic feasibility. The Elvis equation suggests only a small number of asteroids are currently worth mining, but that number could rise sharply with better rockets. Returning precious metals to Earth risks depressing their value, making in-space markets—especially water—more strategically important. Water is a practical early asteroid resource because it can be extracted relatively simply and used as rocket propellant or life-support consumable in orbit. Brexit creates immediate operational risks for the UK space sector through visa friction, reduced EU staff/student mobility, and possible loss of access to EU programs and funding. Goonhilly’s future depends less on the spaceport bid than on diversified business lines, including deep-space communications, engineering services, and data infrastructure. Private investment is becoming central to UK space infrastructure, potentially offsetting some public-sector uncertainty. Robotic systems are the likely first movers in asteroid mining because human exposure to deep space radiation makes early crewed mining impractical.

Data Points: Mineable asteroids today: about a dozen - Martin Elvis’s estimate of asteroids currently worth mining at present technology and prices Value threshold for likely targets: $1 billion or more - Elvis’s remark that a dozen asteroids could be worth at least a billion dollars each Precious metal value: as much as $50 million a ton - Approximate market value cited for platinum and palladium Water content in some asteroids: 10% water - Used to illustrate the abundance of water-bearing asteroids Cost of lifting water to space: $10,000–$20,000+ per liter - Comparison showing why in-space water production could be economically attractive Robot/prospecting timeline: about 10 years - Expected time to build a strong asteroid inventory and begin test mining Scale-up timeline: well underway in 15 years - Estimated timeframe for larger mining operations after prospecting and testing ESA deep-space contract: Goonhilly 6 conversion - Contract to convert the largest Goonhilly antenna for deep-space communications Private investment: £24 million - Peter Hargreaves’ investment in Goonhilly Earth Station Limited Antenna size: 32 meters - Diameter of Goonhilly 6, the site’s largest antenna Historic antenna count: 6 large antennas - Original number of very large antennas at Goonhilly Goonhilly 1 size: 25.9 meters - Size of the first antenna, Arthur Goonhilly 2 size: just over 27 meters - Comparison with Goonhilly 1 and other large dishes Low-Earth-orbit tracking dish: just under 4 meters - Small antenna used partly for ISS tracking Goonhilly 1 rotation speed: 360 degrees in 3 minutes - Illustrates agility limits versus smaller tracking antennas UK spaceport sites under consideration: 8 possible locations - Number of candidate UK spaceport locations across England, Scotland, and Wales

Pivotal Quotes: "I made it even simpler. And it's really trying to tell you how many asteroids are there worth mining out there, right?" — Dr. Martin Elvis: Explaining the Elvis equation as a practical filter for mineable asteroids "The downside is in space no one can hear you sell. There is no market in space right now." — Andrew Glester / Martin Elvis discussion: The challenge of creating a market for asteroid-derived water "Every day that this carries on, it gets worse for us." — Dr. Lucy Bertu: Warning about the ongoing uncertainty around Brexit-related space-sector issues

Implications: Asteroid mining could become a real industry if launch costs fall and in-space demand grows, but policy clarity and investment are equally critical. For the UK, Brexit may slow talent and funding even as Goonhilly and spaceport plans signal new opportunities.