File:NASA’s Webb Telescope Reveals Links Between Galaxies Near and Far - Flickr - James Webb Space Telescope.png

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Last July, the Webb telescope released its very first image: the deepest and sharpest image ever seen. Zooming in on the data, scientists found 3 young, distant galaxies similar to rare, small galaxies called “green peas” in our cosmic backyard. Because the light has traveled so far to get to us, we’re seeing these 3 galaxies as they were up to 13.1 billion years ago.

Specifically, the galactic trio share chemical characteristics — oxygen, hydrogen, and neon signatures — with “green pea” galaxies. (“Green peas” resembled green dots in their discovery images.) Due to their similarities, researchers may be able to study nearby “green peas” in detail to learn more about distant early galaxies.

While Webb’s infrared vision is incredibly sensitive, in this case Webb had some help from space’s “magnifying glass.” The effect of gravitational lensing meant that the mass of the galaxy cluster in Webb’s image actually magnified these tiny, distant galaxies by up to 10 times.

The farthest of the 3 galaxies contains only 2% the oxygen found in a galaxy like ours. This suggests the galaxy is extremely young, as it contains very few heavy elements (like oxygen) recycled from earlier stars.

Learn more: www.nasa.gov/feature/goddard/2023/nasa-s-webb-telescope-r...

Credits: NASA, ESA, CSA, and STScI


Image description: A cropped view of Webb’s very first image released, taken of galaxy cluster SMACS 0723. The background is black, with thousands of orange and white galaxies scattered across the view. This image highlights three tiny red galaxies, each placed in a small white inset box. Two are found in the top right, and one is towards the upper left. The inset boxes are all above a very bright star with 8 long diffraction spikes, seen in the bottom left quadrant.
Date Taken on 10 January 2023, 08:48
Source NASA’s Webb Telescope Reveals Links Between Galaxies Near and Far
Author NASA's James Webb Space Telescope from Greenbelt, MD, USA
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jwst, galaxies, webb, james webb space telescope, early universe, green peas

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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/52619015581. It was reviewed on 19 January 2023 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

19 January 2023

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current02:29, 19 January 2023Thumbnail for version as of 02:29, 19 January 20231,080 × 1,080 (1.18 MB)Red panda bot (talk | contribs)In Flickr Explore: 2023-01-10

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