(250409) -- BEIJING, April 9, 2025 (Xinhua) -- This image provided by the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and the Dark Energy Spectroscopic Instrument (DESI) illustrates a latest breakthrough in dark energy research, which offers fresh insights into the physical mechanisms behind the accelerated expansion of the universe. TO GO WITH "China Focus: Astronomers' dark energy breakthrough sheds new light on cosmic accelerated expansion" (NAOC&DESI/Handout via Xinhua)