The universe’s first stars were giant monsters thousands of times the mass of our sun, and cosmologically speaking, could have formed in a split second after the Big Bang.
The James Webb Space Telescope (JWST) was able to detect distant galaxies from as early as the universe’s beginning. Only 300 million years agoModels suggest that star formation may have begun even earlier in the universe’s 13.8 billion year history, perhaps within the last 200 million years or so.
Source: www.newscientist.com