# The Milky Way Has a Water Supply Chain. SPHEREx Just Mapped It.

- slug: the-milky-way-has-a-water-supply-chain-spherex-just-mapped-it
- date: 2026-04-17
- category: Space & Aerospace

Interstellar clouds hold enough frozen water to deliver oceans to multiple solar systems as they form — not rare delivery, routine supply line. SPHEREx mapped this across 600 light-years of galactic molecular clouds for the first time.

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