Science
Astronomers work out when the first stars shone – BBC News
Called the “cosmic dawn”, this period happened between 250 and 350 million years after the Big Bang.
By Pallab GhoshScience correspondent
image copyrightRalf Kaehler/Tom Abel
image captionThis simulation of what one of the first stars would look like is based on astronomical data. Many of them were more massive than our own Sun and relatively short lived
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