JWST finally makes sense of bright, early galaxies

From its very first glimpse of the distant Universe, JWST has shocked astronomers. <img alt="" src="https://miro.medium.com/v2/resize:fit:630/0*o0LqkRKAl8z-RC0C" style="height:700px; width:700px" /> This almost-perfectly-aligned image composite shows the first JWST deep field’s view of the core of cluster SMACS 0723 and contrasts it with the older Hubble view. The JWST image of galaxy cluster SMACS 0723 is the first full-color, multiwavelength science image taken by the JWST. It was, for a time, the deepest image ever taken of the ultra-distant Universe, with 87 ultra-distant galaxy candidates identified within it. They await spectroscopic follow-up and confirmation to determine how distant they truly are. but even from this first image, JWST observations suggested that the number and density of bright, early galaxies may pose a problem for astronomers. (<a href="https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-delivers-deepest-infrared-image-of-universe-yet" rel="noopener ugc nofollow" target="_blank">Credit</a>: NASA, ESA, CSA, and STScI; NASA/ESA/Hubble (STScI); composite by E. Siegel) <a href="https://medium.com/starts-with-a-bang/jwst-finally-makes-sense-of-bright-early-galaxies-7a6963e553be">Click Here</a>