The James Webb Space Telescope (JWST) has made a groundbreaking discovery — a galaxy called GLASS-z13 that formed just 290 million years after the Big Bang. This makes it the oldest and most distant galaxy ever observed by humanity.
JWST captured GLASS-z13 as a faint red spot in its deep-field images. This tiny dot of light has been traveling for 13.5 billion years, offering scientists a direct glimpse into the earliest days of the cosmos.
Astronomers believe this ancient galaxy is filled with hot, young stars and may be much larger than expected for such an early cosmic age.
Studying GLASS-z13 will help scientists understand:
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How the first galaxies formed after the Big Bang
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How stars and elements developed in the early universe
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How galaxies like our Milky Way evolved over billions of yearsIf the early Milky Way sat next to GLASS-z13 at the same age, our galaxy would look surprisingly small.
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Galaxy Name: GLASS-z13
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Age: 13.5 billion years
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Formed: 290 million years after the Big Bang
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Discovered By: James Webb Space Telescope
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