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☆ A Guide to the James Webb Telescope's View of the Universe
  + stars: | 2023-11-05 | by ( Kate Larue | ) www.nytimes.com   time to read: +1 min
V. Knowing and UnknowingIt’s tempting to decide that all this seeing amounts to knowing. But some of Webb’s observations challenge fundamental assumptions in our timeline of the universe. ‘‘In general, star formation is very inefficient,’’ says Erica Nelson, assistant professor of astrophysics at the University of Colorado Boulder. In the latest models of cosmology, these unobserved phenomena make up 95 percent of the universe. Webb helps us know but also to “unknow”: It gives us stunning new discoveries while simultaneously challenging us to rethink and rebuild our understanding of the past.
Persons: Webb, ‘ ‘, ’, Erica Nelson Organizations: University of Colorado Locations: University of Colorado Boulder
☆ Webb telescope finds two of the most distant galaxies ever observed
  + stars: | 2022-11-17 | by ( Ashley Strickland | ) edition.cnn.com   time to read: +6 min
CNN —The James Webb Space Telescope has spied one of the earliest galaxies formed after the big bang, about 350 million years after the universe began. Webb’s capability to look deeper into the universe than other telescopes is revealing previously hidden aspects of the universe, including astonishingly distant galaxies such as these two finds. Two distant galaxies were observed by the James Webb Space Telescope. Just a few hundred million years after the big bang, there were already lots of galaxies. Detection of light invisible to the human eyeThe new findings about the two galaxies might mean there are other bright galaxies waiting to be found in the distant universe.
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