NASA’s SPHEREx Completes Unprecedented Cosmic Map, Probing Milky Way Water and Early Universe

“An unprecedented cosmic map” signifies the completion of a universe-wide observation by NASA’s SPHEREx (Spectro-Photometric Explorer) space telescope with unparalleled precision. Announced on December 18, 2025, this achievement marks a significant stride toward answering fundamental questions about the origin and evolution of the universe.

SPHEREx observes the cosmos in infrared light, analyzing the light from galaxies billions of light-years away to reveal in detail the universe’s expansion, structure, and the distribution of dark matter and dark energy. It particularly enables observations that have been challenging, such as quantifying water deposits within the Milky Way and understanding the state of the universe immediately after the Big Bang.

This observational data is expected to serve as a valuable resource for researchers across a broad spectrum of fields, including cosmology, galaxy formation, and planetary science, contributing significantly to unraveling the mysteries of the universe.

This article was generated by Gemini AI as part of the automated news generation system.