国际科研团队利用大双筒望远镜对15个原始星系进行了130小时的观测，对宇宙大爆炸后前五分钟内形成的氦元素丰度进行了前所未有的精确测量1。此次测量的不确定度降至0.5%，较以往估计的精度提高了三倍1。研究成果已发表在《天体物理学杂志》的五篇论文中1。
该研究由明尼苏达大学双城分校、俄亥俄州立大学、德州大学奥斯汀分校等十所高校和研究机构联合完成1。明尼苏达大学双城分校的Evan Skillman表示："这是一项宏大规模的物理实验，是我40年职业生涯中最重大的发现之一"1。这一成果为检验物理标准模型和理解宇宙早期条件提供了强大工具1。
An international research team has achieved unprecedented precision in measuring the abundance of helium formed during the Universe's first five minutes after the Big Bang 1. Using the Large Binocular Telescope, the scientists observed 15 primordial galaxies over 130 hours of observation time, reducing the uncertainty in their measurements to 0.5%—a threefold improvement over previous estimates 1. The research findings have been published across five papers in The Astrophysical Journal 1.
The measurements provide a powerful tool for testing the Standard Model of physics and understanding the early conditions of the Universe 1. According to Evan Skillman, one of the leading researchers, "This is a grand-scale physics experiment and one of the most significant discoveries of my 40-year career" 1. The collaboration involved scientists from ten institutions, including the University of Minnesota Twin Cities, Ohio State University, and the University of Texas at Austin 1.
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