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nobody

24 Iul 2022 03:28



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Arata ca un astigmatism sagital. Explicatii de la NASA:

Other features include the prominent arcs in this field. The powerful gravitational field of a galaxy cluster can bend the light rays from more distant galaxies behind it, just as a magnifying glass bends and warps images.

The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it. Webb&#8217;s NIRCam has brought those distant galaxies into sharp focus &#8211; they have tiny, faint structures that have never been seen before, including star clusters and diffuse features. Researchers will soon begin to learn more about the galaxies&#8217; masses, ages, histories, and compositions, as Webb seeks the earliest galaxies in the universe.

