DESI (Dark Energy Spectroscopic Instrument)

DESI (Dark Energy Spectroscopic Instrument) is a scientific tool attached to a telescope that maps the universe by measuring the light from millions of galaxies and quasars. Its goal is to understand the mysterious force called dark energy that is causing the universe to expand faster over time. By analyzing how galaxies are distributed and how their positions change, DESI helps scientists study the universe’s history and structure, providing insights into fundamental questions about its origin, composition, and fate.