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The Webb Space Telescope has discovered the most distant galaxy ever seen


Using the James Webb Space Telescope, an international team of astronomers has discovered the most distant galaxy ever known, the Barred Spiral Galaxy, which is more than 11 billion years old. The study was published Nov. 8 in Nature.

Artistic rendering of CEERS-2112. Photo credit: Luca Costantin

Most spiral galaxies are like the Milky Way, and due to the instability of the galaxy disk itself, a “rod” structure formed by the aggregation of a large number of stars is formed in the center of the galaxy, and this type of galaxy is called a rod spiral galaxy. The Milky Way, where humans live, is a barred spiral galaxy with a vortex structure.

Researchers have discovered a strange galaxy from the Webb Space Telescope’s “Early Cosmic Evolution Release Scientific Survey” survey data, which captured thousands of new images of very distant galaxies.

Luca Costantin, an astronomer at the Spanish Center for Astrobiology and corresponding author of the study, said: “At first, I just thought the galaxy looked a little strange and couldn’t classify its shape. “By cross-comparing with data from the Hubble Space Telescope, the researchers determined that it was a barred spiral galaxy and named it CEERS-2112.

The study found that CEERS-2112 dates back to 2 billion years before the universe was born, even earlier than people think. The Big Bang occurred about 13.7 billion years ago, making CEERS-2112 the most distant barred spiral galaxy ever discovered. (Source: Meng Lingxiao, China Science News)

Related Paper Information:https://doi.org/10.1038/s41586-023-06636-x



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