For mining companies, the most expensive question is often the simplest one: what is down there? The standard answer involves a slow, costly, and environmentally disruptive process of drilling and seismic surveys. A startup from Neuquén, Argentina, is betting the answer can be found by looking up, at particles raining down from space. Ab Astra is building compact muon detectors and software to create what it calls a CT scan for the earth, using naturally occurring cosmic-ray muons to image subsurface geology without a single drill bit [Ab Astra, Inc., retrieved 2024].
A hardware wedge in a software-heavy field
The company's wedge is a physics-first approach to a data-starved industry. Muography, the technique of imaging dense structures by analyzing how cosmic-ray muons are absorbed, is not new. It has been used in archaeology and to peer inside volcanoes and nuclear reactors. The leap Ab Astra is attempting is to make the technology compact, portable, and interpretable enough for commercial mineral exploration, starting with the lithium-rich salt flats of South America [Perplexity Sonar Pro Brief, retrieved 2024]. Their system comprises proprietary muon sensors, reconstruction software, and AI models to translate particle data into 3D density maps. The promise is a clearer picture of ore bodies and brine reservoirs, potentially reducing exploratory drilling and its associated cost and uncertainty [LatAm Republic, June 2026].
Why Draper Cygnus wrote the check
The $2 million pre-seed round led by Draper Cygnus in June 2026 signals investor belief in both the technical team and the timing [LatAm Republic, June 2026]. The founding duo, Germán Serrano and Hernán Asorey, are physicists and doctoral colleagues from the prestigious Instituto Balseiro. Their backgrounds bridge the gap between deep science and industrial application. Serrano was previously Director of Special Projects at Argentina's state oil company YPF, while Asorey is a former researcher at the country's National Atomic Energy Commission (CNEA) with a subsequent career in data leadership at Salesforce and Microsoft [Perplexity Sonar Pro Brief, retrieved 2024] [Business Insider, November 2020]. This combination suggests an understanding of both the sensor physics and the data pipeline required to turn particle counts into a commercial product.
The market tailwind is the global scramble for critical minerals like lithium, copper, and uranium. Exploration in complex geological settings, such as deep lithium brines, is notoriously difficult and capital-intensive. A non-invasive imaging tool that could de-risk these projects would find a ready audience among mining majors under pressure to expand reserves while managing environmental and community impact. Ab Astra's stated goal is to conduct its first proof-of-concept tests in a salt-flat environment, a critical step toward validating its technology for this initial market [Perplexity Sonar Pro Brief, retrieved 2024].
| Role | Name | Key Background |
|---|---|---|
| CEO & Co-Founder | Germán Serrano | Physicist; Former Director of Special Projects, YPF |
| CTO & Co-Founder | Hernán Asorey | Physicist; Former researcher, CNEA; Former Chief Data Officer, Salesforce |
| CBO & Co-Founder | Juan Novelli | Co-Founder & CBO, Ab Astra [LinkedIn, retrieved 2026] |
Where the physics meets the ground
The ambition is clear, but the path from prototype to product is lined with technical and commercial hurdles that go beyond peer-reviewed publication. The company's claim of targeting "up to 100x greater spatial resolution than comparable alternatives" remains a bold, unverified assertion that will need rigorous field validation [Perplexity Sonar Pro Brief, retrieved 2024]. Furthermore, muography is not an empty field. Competitors like Canada's Ideon Technologies (backed by Eric Schmidt) are also commercializing muon detection for mining, setting the stage for a race to prove which system delivers the most actionable intelligence at the lowest operational cost [Perplexity Sonar Pro Brief, retrieved 2024].
Ab Astra's early-stage status means key commercial milestones are still ahead. The next twelve months will be defined by the outcome of its planned salt-flat proof-of-concept. Success there would translate the physics into a tangible value proposition for a first mining partner. The risks at this stage are primarily executional:
- Sensor performance. The compact detectors must perform reliably in harsh, remote field conditions and collect data over practical timeframes.
- Data interpretation. The AI models must convert muon attenuation into geologically accurate maps that improve upon existing methods.
- Commercial adoption. Mining is a conservative industry; displacing established survey methods requires demonstrating unequivocal cost savings or discovery rates.
For the mining geologist working today, the standard of care is a sequential, inferential process. It begins with broad geophysical surveys like seismology or electromagnetics, which provide low-resolution clues. Promising areas are then tested with a grid of drill holes, each one costing hundreds of thousands of dollars and yielding only a one-dimensional core sample. The final 3D model of the resource is an interpolation, an educated guess between these sparse data points. It is a process fraught with uncertainty, where a missed ore body can mean a wasted investment, and an overestimation can doom a mine's economics before it opens. Ab Astra's entire bet is that a clearer, direct image of the subsurface can rewrite that costly and uncertain workflow for the critical minerals that power everything from batteries to grids.
Sources
- [Ab Astra, Inc., retrieved 2024] Ab Astra, Inc. | we make the unseen, seen. | https://abastra.tech/
- [Perplexity Sonar Pro Brief, retrieved 2024] Ab Astra company briefing | (Source summary)
- [LatAm Republic, June 2026] Ab Astra Closes US$2 Million Funding Round to Develop Next-Generation Subsurface Imaging for Mining. | https://www.latamrepublic.com/ab-astra-closes-us-2-million-funding-round-to-develop-next-generation-subsurface-imaging-for-mining/
- [Business Insider, November 2020] Microsoft just poached Salesforce's chief data officer as the competition between the two tech giants intensifies | https://www.businessinsider.com/microsoft-poaches-salesforce-chief-data-officer-hernan-asorey-2020-11
- [LinkedIn, retrieved 2026] Juan Novelli - Co-Founder & CBO - Ab Astra | https://www.linkedin.com/in/juan-novelli/