Tag: high-redshift galaxies
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Supermassive Stars Explain Nitrogen Boost in GN-z11
Introduction: A Nitrogen Enigma in the Early Universe Astronomers have long suspected that the first galaxies formed with simple chemical footprints. Yet recent observations of GN-z11, a galaxy seen as it was when the universe was just about 420 million years old, reveal unusually high nitrogen levels. This surprising finding challenges conventional models of early…
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James Webb Spots a Gassy Baby Galaxy Throwing a Tantrum in the Early Universe
Introduction: A newborn galaxy disrupts our picture of the early universe The James Webb Space Telescope (JWST) has captured a remarkable newborn galaxy in the distant past, offering new clues about how the earliest galaxies formed and grew. Researchers describe the object as a “gassy baby,” a note that hints at wild star-forming activity and…
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Greek Student Uncovers Oxygen in Galaxies 12 Billion Years Old: A Breakthrough in Early-Universe Chemistry
Overview: A Groundbreaking Glimpse into the Early Universe In a striking demonstration of modern observational astronomy, Menelaos Raptis, a Greek physics student at Franklin & Marshall College, has identified oxygen in two galaxies dating back roughly 12 billion years. This discovery, described by leading scientists as a rare and important window into the chemical makeup…