“How did the universe become transparent? New insight here”

The universe we see today looks clear and empty, apart from the stars and galaxies. In the early universe, however, a few hundred million years after the Big Bang, the cosmos was opaque. Light from the stars couldn’t penetrate the dense hydrogen intergalactic gas. So, how did the universe become clear? Using data from NASA’s Webb Space Telescope, an international group of astronomers said on June 12, 2023, that light from stars ionized and heated the surrounding gas.
Click here to read the complete article.








