NASA’s ‘Slingshot’ Concept Aims to Map Minerals Across the Solar System

For half a century the Landsat series has been circling Earth, painting detailed pictures of soils, forests and even hidden mineral deposits. Imagine that same “eyes‑in‑the‑sky” capability, not over our own planet, but over the Moon, an asteroid, or the tiny moons of Mars.

That’s the seed of a freshly funded NASA project called the Interworld Slingshot Resource Surveys – an admittedly clunky title that the team simply shortens to “Slingshot.” The idea is still in the very early stages, a Phase 1 study under the agency’s Innovative Advanced Concepts (NIAC) program, but the ambition is big: prove that a single, modest‑size spacecraft could hop from world to world, beaming back mineral maps that could guide future mining operations.

“The thing most likely to stop space mining is that we can’t afford to prove there’s anything worth mining,” says Pablo Sobron, the principal investigator and a research scientist at the SETI Institute. “Land in the wrong place and you lose an entire program or a company’s investment.” In other words, you need a reconnaissance mission before you commit crews or cash to a lunar base or an asteroid prospecting venture.

The technical heart of Slingshot is Raman spectroscopy – the same laser‑based technique NASA’s Perseverance rover uses to sniff out organics on Mars. A laser fires at a target, and the tiny fraction of photons that scatter back carry a fingerprint of the material’s molecular bonds. The catch? Raman‑scattered photons are exceedingly rare – roughly one in ten trillion of the photons that hit the surface.

Sobron’s team has already demonstrated Raman detection over about 120 metres in the lab. Slingshot aims to stretch that distance dramatically, trying to get meaningful readings from 30 to 50 kilometres away during a fast fly‑by. If successful, a single orbiting probe could map water‑ice deposits, helium‑3 concentrations, and a host of other resources without ever having to land.

The NIAC Phase 1 grant provides up to $175,000 for nine months of work. That money will fund studies of the photons themselves, the laser system, pointing accuracy, and the spacecraft’s propulsion and orbital dynamics. The goal is to produce a convincing trade‑study that justifies a larger Discovery‑class mission – a spacecraft the size of a small bus that could tour multiple bodies in one go.

NIAC has a mixed track record; many imaginative concepts never leave the drawing board. Still, there have been successes – for instance the SNAPPY CubeSat, a solar‑neutrino detector that rode to orbit aboard a SpaceX launch earlier this year. Slingshot hopes to join that short list of concepts that graduate from “cool idea” to “real hardware.”

If the Phase 2 funding window opens, the team would have two years and a larger budget to flesh out a flight‑ready design, test hardware in relevant environments, and perhaps even fly a technology‑demonstrator on a rideshare launch.

In the bigger picture, a reliable, remote‑sensing mineral scout could be the missing piece in the United States’ push to secure lunar resources – especially helium‑3 – before rival nations catch up. The ability to map where the valuable stuff actually lies would make the difference between a bold, sustainable presence on the Moon and a costly, blind gamble.