WASHINGTON, April 17 -- The Dark Energy Spectroscopic Instrument (DESI) has produced the largest high-resolution 3D map of the universe to date, offering scientists an unprecedented dataset to study the structure and expansion of the cosmos.

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Over a five-year observation period, DESI recorded data from more than 47 million galaxies and quasars, along with 20 million stars. The massive survey provides one of the most detailed views of the universe ever assembled, enabling researchers to trace cosmic evolution across vast distances and time.

Installed on the Nicholas U. Mayall 4-m Telescope at Kitt Peak National Observatory in Arizona, the instrument began collect...