Evolving Dark Energy from DESI

DESI’s large‑scale structure measurements (galaxy clustering across redshift) are being interpreted as tentative evidence that the dark‑energy component of the Universe may change with time rather than remaining a true cosmological constant. If confirmed by independent surveys and cross‑checks, this would require new physics beyond ΛCDM and alter predictions for the Universe’s expansion history and ultimate fate. — A robust signal of evolving dark energy would rewrite a foundational cosmological assumption, reshaping funding priorities, space missions, and public narratives about the Universe.