
SPHEREx Maps Dust-Guarded Water Ice in Cygnus X Star-Forming Clouds
NASA’s SPHEREx mission mapped water ice across the Cygnus X star-forming region (about 4,500 light-years away), revealing ice that’s shielded by tiny dust grains from intense radiation. The findings, published in The Astrophysical Journal, support the idea that ice forms on dust and can persist in harsh environments, thanks to the shielding provided by interstellar dust. SPHEREx, launched in 2025, surveys the sky in 102 infrared wavelengths, enabling this large-scale view of ices across space.

