A handful of objects uncovered in JWST data has astronomers stumped.
What's thought to be half a dozen galaxies appear to be massive and well-formed, in spite of appearing as they were just 500 to 700 million years after the. Yet according to current cosmological models, there simply wasn't enough time for them to have grown to such a state of relative maturity."We've never observed galaxies of this colossal size, this early on after the Big Bang,"of Swinburne University of Technology in Australia, who led the international research effort.
"We looked into the very early Universe for the first time and had no idea what we were going to find,"of Pennsylvania State University."It turns out we found something so unexpected it actually creates problems for science. It calls the whole picture of early galaxy formation into question." There are a number of reasons why these fully formed galaxies pose a problem. One is that the density of matter within today's largest galaxies vastly exceeds estimates for this time period. Another is that the density of normal matter is coming into tension with the amount ofThe objects are so difficult to explain under current cosmology that the research team has been busy scouring their work for errors.
."We've been informally calling these objects 'Universe breakers' – and they have been living up to their name so far."
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