Cosmic dawn

Cosmic dawn is the term used to describe the period when the first stars began shining. Astronomers estimate this event to have occurred between 250 and 350 million years after the Big Bang. During this period, the first stars, black holes and galaxies were formed in the universe.

This means that the first galaxies will be bright enough to be seen by NASA’s James Webb Space Telescope, which is expected to be launched on November this year. This study was published in the Monthly Notices of the Royal Astronomical Society.


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