Space Mining Is Leaving Science Fiction Behind
Asteroid resource exploitation is no longer a science fiction dream. In 2025, NASA returned samples from asteroid Bennu with the OSIRIS-REx mission, confirming significant concentrations of rare minerals. ESA is planning Hera to study asteroid deflection. Private companies like AstroForge and TransAstra are advancing on prospecting missions.
The space resources market is estimated at over 100 billion dollars by 2040 according to Goldman Sachs. Near-Earth asteroids (NEAs) contain reserves of platinum, cobalt, nickel, and rare earth elements that could resolve terrestrial shortages while fueling space infrastructure.
But before mining an asteroid, you need to know which one to target. And that is where things get complicated.
The Problem: Too Much Data, Not Enough Synthesis
JPL's Small-Body Database catalogs over 35,000 near-Earth asteroids. For each, orbital data, estimated physical parameters, and sometimes spectral compositions are available. But these data are scattered across multiple sources, in different formats, and require expertise in orbital mechanics to interpret.
The questions that mission planning engineers ask are straightforward: which asteroid is reachable with reasonable delta-v? Which one has the best probable mineral composition? What is the return-to-risk ratio for each target?
Asteroids answers these questions.
Asteroids: 500+ NEAs Analyzed and Scored
Asteroids is an interactive dashboard presenting over 500 near-Earth asteroids with mineability scores calculated from orbital and physical data.
The Mineability Score
Each asteroid receives a composite score based on several factors:
Orbital accessibility: The delta-v required to reach the asteroid from low Earth orbit. An asteroid with delta-v below 5 km/s is considered easily accessible. Above 8 km/s, economic interest drops significantly.
Estimated size: Diameter and mass estimated from absolute magnitude and assumed albedo. Asteroids too small lack sufficient resources to justify a mission. Asteroids too large present technical challenges for extraction.
Probable composition: Based on spectral taxonomic class (C, S, M, X). M-type asteroids are metal-rich. C-types contain water and organic compounds. S-types are mixed silicate-metal.
Transfer window: Frequency and duration of optimal launch windows. An accessible asteroid with a transfer window every 15 years has less value than one accessible every 2 years.
Rotation period: Spin rate influences the feasibility of docking and extraction. Asteroids with very short rotation periods present additional technical challenges.
Displayed Data
For each asteroid, the dashboard shows:
- Name and provisional designation
- Orbital parameters (semi-major axis, eccentricity, inclination)
- Taxonomic class and estimated composition
- Estimated diameter and uncertainty
- Minimum delta-v for rendezvous
- Composite mineability score (0-100)
- Next transfer windows
- Estimated resource value (in USD, based on terrestrial spot prices)
Filters and Sorting
The dashboard allows filtering by taxonomic class, delta-v range, size, minimum score, and next transfer window. You can sort by any parameter to quickly identify the most promising targets.
The Public API
Asteroids provides a public REST API exposing the same data as the dashboard. The main endpoints are:
GET /api/asteroids: Paginated list with filters (class, min/max delta-v, min score, min/max size).
GET /api/asteroids/:id: Complete details for a specific asteroid including observation history and ephemerides.
GET /api/asteroids/:id/windows: Transfer windows calculated for the next 10 years.
GET /api/stats: Aggregated statistics on the catalog (class distribution, score histogram, top 10).
The API is free, documented with OpenAPI/Swagger, and rate-limited to 100 requests per minute per IP. It is used by researchers, students, and NewSpace startups.
Who Is Asteroids For
NewSpace startups: You are planning prospecting or exploitation missions. Asteroids gives you a pre-analyzed catalog to identify your priority targets.
Planetary science researchers: You study NEAs and need structured access to data with mineability metrics.
Aerospace engineering students: You are working on mission design projects. Asteroids provides realistic data for your case studies.
Space enthusiasts: You follow space news and want to explore the asteroids that could become the mines of the future.
NewSpace investors: You are evaluating space mining startups and need to understand the landscape of potential targets.
Methodology and Sources
Orbital data come from JPL's Small-Body Database, updated daily. Taxonomic classifications come from the SMASS (Small Main-Belt Asteroid Spectroscopic Survey) database and the Bus-DeMeo taxonomy. Composition estimates are derived from near-infrared absorption spectra when available, and from taxonomic class otherwise.
Delta-v calculations use the Shoemaker-Helin approximation for transfers from a 200 km low Earth orbit. Transfer windows are calculated via Lambert solver on grids of departure and arrival dates.
Resource valuations are based on terrestrial spot prices for corresponding metals, multiplied by the estimated mass of the asteroid and by the mineral fraction assumed for its taxonomic class. These values are indicative and do not account for extraction or transportation costs.
Limitations and Intellectual Honesty
Asteroids is an exploration and pre-selection tool, not a definitive mission planning tool. Several limitations deserve mention.
Compositions are estimated, not measured. Taxonomic classification provides a statistical indication, not certainty. Two M-type asteroids can have very different compositions.
Dollar valuations are theoretical. They assume complete extraction and an unchanged terrestrial market, which is unrealistic. They serve only to give a relative order of magnitude between asteroids.
Delta-v calculations are simplified. Real mission planning requires complete trajectory models with gravity assists, planetary perturbations, and spacecraft mass constraints.
The Broader Vision
Asteroids is part of OmniRealm's long-term vision for space technology tools. As the space mining industry matures, the demand for accessible, reliable data tools will grow exponentially. We are building the infrastructure layer that future mining companies will need.
The dashboard and API are free because we believe open data accelerates the entire industry. When the space mining market reaches its potential, the companies with the best data will win.
Conclusion
The space mining industry is being built today. The first commercial prospecting missions are planned before 2030. The companies and researchers with the best data will have a decisive advantage.
Asteroids puts that data one click away. Explore the 500+ most promising NEAs at asteroids.omnirealm.tech or integrate the data into your tools via our public API.