China scientists float sensor to hunt dark energy…

China’s National Astronomical Observatories (NAOC) under the Chinese Academy of Sciences (CAS) on Wednesday announced a major scientific breakthrough in the study of dark energy, one of the greatest unsolved mysteries in modern physics.

The achievement offers a new perspective and key evidence for understanding the physical mechanisms behind the accelerating expansion of the universe, and suggests the possible existence of new physics beyond the standard cosmological model, according to Chinese researchers participating in the program.

According to NAOC, the Dark Energy Spectroscopic Instrument (DESI) is one of the world’s leading dark energy observation programs, involving more than 70 research institutions in a global collaboration. Based on a 4-meter optical telescope, DESI conducts high-precision redshift measurements of tens of millions of celestial objects, creating a detailed 3D map of the large-scale structure of the universe to probe the physical properties of dark energy.

Researchers from NAOC, including teams led by Zhao Gongbo and Zou Hu, have participated in the DESI project for more than a decade.

Zhao’s team has led efforts to systematically study the properties of dark energy using proprietary analytical methods, while Zou’s team has played a key role in the scientific operations of DESI, contributing enriched star catalogs that have facilitated new scientific discoveries, per the NAOC.

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