Why in news
Recently, James Webb Space Telescope (JWST) discovered unexpectedly large and fully-developed galaxies in the early universe, specifically around 400-650 million years after the Big Bang.
This challenges the existing standard model of galaxy formation, prompting further investigation into the early universe's conditions.
Recent Discovery of Massive Galaxies
Astronomers found that instead of infant galaxies, there were "monstrous" structures that appeared fully developed at a much earlier stage than expected.
JWST’s advanced infrared capabilities allow it to detect faint distant galaxies that earlier telescopes could not see.
The study reported a greater number of massive galaxies than anticipated in this early period.
What the Discovery Says About
The discovery suggests that early galaxies may have formed stars more efficiently than those today, necessitating a reassessment of galaxy formation models.
The presence of massive black holes in these galaxies may have previously led to overestimations of their mass due to the additional light they emit
The findings still align with the standard model, suggesting extreme conditions and abundant gas in the early universe contributed to star formation rates, supporting existing theories rather than overturning them.
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