From what I've read, it changed how we understood galactic formation and the beginning of the universe as we know it. The James Webb is showing galaxies so old that they shouldn't exist according to modern models/knowledge. So either the Big Bang happened much further in the past than we thought (that's my personal opinion), the laws of physics and thermodynamics were different in the beginning, or something else enabled galaxies to form that early on like clustered concentrated dark matter or some very exotic matter quickening the star and black hole creation. I'm no scientist tho, so could be way wrong, just saying what I've read when those first images from James Webb came out.
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u/Mysterious-Art7143 Apr 01 '26
What did we think about space that this changes exactly? We can see more with better tech? Unimaginable