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Global Map Reveals 68 Quadrillion Miles of Fungal Networks

6/22/2026

Summary

Story summary

Ecologist Justin Stewart announced his team created a global map of mycorrhizal fungal networks.
Researchers used soil samples, satellite data and AI to locate dense and sparse fungal filaments.
They estimated the networks total about 68 quadrillion miles, roughly 730 million Earth-Sun distances.
The map shows densest networks in wetlands such as the Everglades, while deserts like the Sahara are sparsest.
Stewart said understanding this hidden infrastructure is essential for protection.

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Story summary

Ecologist Justin Stewart announced his team created a global map of mycorrhizal fungal networks.
Researchers used soil samples, satellite data and AI to locate dense and sparse fungal filaments.
They estimated the networks total about 68 quadrillion miles, roughly 730 million Earth-Sun distances.
The map shows densest networks in wetlands such as the Everglades, while deserts like the Sahara are sparsest.
Stewart said understanding this hidden infrastructure is essential for protection.