Scientists successfully mine meteorites on International Space Station — using microbes
Space.com
by Julian Dossett February 20, 2026
AI-Generated Deep Dive Summary
Scientists have successfully conducted an experiment on the International Space Station (ISS) using microorganisms to extract precious metals from meteorites, potentially paving the way for sustainable resource extraction in space. Researchers from Cornell University and the University of Edinburgh collaborated on this groundbreaking study, which utilized two different microbes—a bacterium called *Sphingomonas desiccabilis* and a fungus named *Penicillium simplicissimum*. These organisms were employed to mine meteorites by producing carboxylic acids that bind to minerals, releasing them into a liquid solution. The experiment was carried out by NASA astronaut Michael Scott Hopkins during his time aboard the ISS.
The study revealed that while the extraction process worked similarly in both Earth and space environments, there were notable differences in microbial behavior under microgravity conditions. For instance, the fungus demonstrated increased molecule production, including carboxylic acids, which enhanced its ability to extract metals like palladium and platinum. These findings suggest that microorganisms could play a crucial role in resource extraction during long-term space missions, reducing reliance on Earth for essential materials.
The research highlights the importance of developing methods to mine resources in space, as shipping materials from Earth can be costly and logistically challenging. By leveraging microbial mining, future missions could become more sustainable and cost-effective. This approach also aligns with broader efforts by companies like Astroforge, which are exploring alternative techniques such as laser and magnetic extraction for asteroid mining.
The implications of this study extend beyond scientific curiosity to address practical challenges in space exploration. Extracting
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Originally published on Space.com on 2/20/2026