Metallic messengers from the cosmos: Rare (Al,Cu)‐bearing meteorites from the Project Stardust collection
Abstract We report the discovery of (Al,Cu)‐bearing metallic alloys in two micrometeorites found in the Project Stardust collection gathered from urban rooftop environments in Norway. Most of the alloys are the same as those found in the Khatyrka meteorite and other micrometeorites, though one has a composition that has not been reported previously. Oxygen isotope ratio measurements using secondary ion mass spectrometry show that the Project Stardust samples reported here, like all earlier examples of natural (Al,Cu)‐bearing alloys, contain material of chondritic affinity.
Authors
- Jan Kihle (ORCID: https://orcid.org/0000-0002-7808-932X)
- Guangming Cheng (ORCID: https://orcid.org/0000-0001-5852-1341)
- Luca Bindi (ORCID: https://orcid.org/0000-0003-1168-7306)
- Paul D. Asimow (ORCID: https://orcid.org/0000-0001-6025-8925)
- Jon Larsen
- Paul J. Steinhardt (ORCID: https://orcid.org/0000-0003-3488-1603)
- Chi Ma (ORCID: https://orcid.org/0000-0002-1828-7033)
- Yunbin Guan (ORCID: https://orcid.org/0000-0002-7636-3735)
- J. Hu (ORCID: https://orcid.org/0000-0003-0415-4616)
- Nan Yao (ORCID: https://orcid.org/0000-0002-4081-1495)
Institutions
- California Institute of Technology (US)
- University of Oslo (NO)
- Princeton University (US)
- Institute for Energy Technology (NO)
- University of Florence (IT)
Publication Details
- Journal
- Meteoritics and Planetary Science
- Published
- 2025-06-11
- DOI
- https://doi.org/10.1111/maps.14377
- Citations
- 1
- Primary Topic
- Astro and Planetary Science
- Type
- article
- Field-Weighted Citation Impact
- 1.15
Funders
- National Science Foundation
- California Institute of Technology
- Princeton Center for Complex Materials
- Agenzia Spaziale Italiana
- Materials Research Science and Engineering Center, Harvard University
- Division of Materials Research