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Cosmic Evolution Early


Early galaxies weren’t mystifyingly massive after all, James Webb Space Telescope finds

Early galaxies weren’t mystifyingly massive after all, James Webb Space Telescope finds

The universe has expanded greatly since it was born about 13.8 billion years ago in the Big Bang, and that means the light from early galaxies appears reddened by the time it reaches Earth, much as how an ambulance siren sounds lower-pitched to people as the vehicle drives away.