The mystery of six galaxies that appeared too large for their age has been solved by astrophysicists, with the explanation lying in the 'bursty star formation.'
Scientists were mystified by images of some of the universe's earliest galaxies when it appeared they were much larger and brighter than expected—until now.Images of these six ancient galaxies, taken by the James Webb Space Telescope , revealed that the galaxies were too big and too mature for their young age.
Bursty star formation is when stars in a galaxy all form at once, creating a period of immense brightness, followed by a lull.'Bursty star formation is especially common in low-mass galaxies,' Faucher-Giguère said. 'The details of why this happens are still the subject of ongoing research. But what we think happens is that a burst of stars form, then a few million years later those stars explode as supernovae.
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