James Webb Telescope Reveals More Clearly the Structure of the Universe
Using Webb, researchers have found two early galaxies that are unusually bright, one of which could contain the most distant starlight ever seen. The galaxies are thought to have existed 350 and 450 million years after the big bang (respectively, from top to bottom). Unlike our Milky Way, these first galaxies are small and compact, with spherical or disk shapes rather than grand spirals.
Webb’s new findings suggest that the galaxies would have had to begin coming together about 100 million years after the big bang — meaning that the first stars might have started forming in such galaxies around that time, much earlier than expected. (Photo: NASA, ESA, CSA, Tommaso Treu (UCLA)/Flickr)
The James Webb Space Telescope launched on December 25, 2021, begins to reveal more clearly the structure of the universe. Not a universe full of stars but of galaxies forms the relevant part of the information provided.
This has been made clear by employing gravitational lensing, to review certain of the universe.
In a recent research published by The Astronomical Journal, the north ecliptic pole was analyzed (within the project: Prime Extragalactic Areas for Reionization and Lensing Science (PEARLS), together with gravitational lensing (A gravitational lens is a distribution of matter -such as a cluster of galaxies- between a distant light source and an observer that is able to bend the light from the source as the light travels towards the observer, Source: wikipedia). Very distant galaxies were observed. A billion times more than can be seen with the naked eye, the light from these galaxies have traveled 13.5 billion years.