Nature Astronomy, Published online: 27 February 2024; doi:10.1038/s41550-024-02213-y

Cosmic dust contains all the elements needed for life but has previously been considered too rare to have acted as a ‘fertilizer’ for prebiotic chemistry. Now, using a combination of astrophysical and geological models, it is revealed that cosmic dust could have gently accumulated on the surface of early Earth in sufficient quantities to promote the chemical reactions that led to first life.

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