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Mining the apollo and amor asteroids.

B O'leary

    Science (New York, N.Y.)
    |July 22, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Asteroids offer valuable raw materials for space manufacturing, with retrieval costs potentially lower than lunar resources. New discoveries promise diverse asteroidal materials for low-energy missions.

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    Area of Science:

    • Space exploration
    • Asteroid mining
    • Resource utilization

    Background:

    • Earth-approaching asteroids present a potential source for in-space manufacturing.
    • Resource extraction from asteroids could complement or surpass lunar material viability.

    Purpose of the Study:

    • To assess the feasibility of utilizing Earth-approaching asteroids for space manufacturing.
    • To compare the energy and cost-effectiveness of asteroid-derived resources versus lunar resources.

    Main Methods:

    • Analysis of energy requirements for transferring asteroidal resources to high Earth orbit.
    • Review of optical studies on asteroid compositions.
    • Evaluation of logistical factors influencing resource retrieval costs.

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    Main Results:

    • Energy per unit mass for asteroid resource transfer is comparable to lunar materials.
    • Logistical factors suggest significantly lower costs for asteroid resource utilization.
    • Asteroid compositions include carbonaceous chondrites, ordinary chondrites, iron, nickel, carbon, nitrogen, and hydrogen.

    Conclusions:

    • Earth-approaching asteroids are viable sources for space manufacturing raw materials.
    • Asteroid resources offer unique elemental compositions, including those scarce on the Moon.
    • Upcoming asteroid discoveries will enhance the potential for diverse, low-energy resource retrieval missions.