Distant ‘teenage galaxies’ surprise astronomers with unexpected heavy elements

The deeper we look into space, the further back in time we see. Light emanating from some of the younger galaxies in our universe has to travel for billions of years to reach us, getting picked up by our instruments, rich with information from the cosmic dawn. And not only can this light tell us where we have come from, but where we might be headed. 

To understand the evolution of several of these early universe, “teenage” galaxies, a Northwestern University-led team of astrophysicists have inspected data from the James Webb Space Telescope (JWST), which gazed back to realms that formed just two-to-three billions years after the Big Bang. 

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