Japan: Most distant galaxy with oxygen ever detected

The detection of ionised oxygen indicates that many very brilliant stars, several dozen times more massive than the Sun, have formed in the galaxy and are emitting the intense ultraviolet light needed to ionise the oxygen atoms. (representative image; Express archives)
Scientist have found the most distant galaxy with oxygen ever to be detected, seen just 700 million years after the Big Bang, which provides a glimpse into the early history of the universe.
Using the Atacama Large