Tracing the Universe's Earliest Stars through Chemical Evidence.
An international research team has found the first chemical traces of some of the oldest stars in the universe, confirming the existence of massive stars in the early universe. The first-generation stars, which lit up the universe as early as 100 million years after the Big Bang, could have had a mass as much as 260 times that of the sun. The researchers focused on a star named LAMOST J1010+2358, which has particular chemical characteristics, and confirmed that the parent star of LAMOST J1010+2358, the first-generation star, had 260 times the mass of the Sun.
