NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) mission has mapped interstellar ice at an unprecedented scale. Covering regions in our Milky Way galaxy more than 600 light-years across, the ice was found inside giant molecular clouds — va...
‘Interstellar Glaciers’: NASA’s SPHEREx Maps Vast Galactic Ice Regions
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April 15, 2026 •
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NASA
