Exhaust lines

A picture of the three red monsters taken by Webb. Credit: NASA/CSA/ESA, M. Xiao & PA Oesch (University of Geneva), G. Brammer (Niels Bohr Institute), Dawn JWST Archive

"Red monsters" from the cosmic dawn: discoveries that challenge models of galaxy formation

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Webb and Hubble Space Telescope composite image of the RX J2129 galaxy cluster, with three images of the 9.51 redshift galaxy circled in green. From the scientific article

Ancient compact galaxy with high star formation rate discovered by Webb Space Telescope

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The redshift of this galaxy reaches 9.51 meaning that it was seen when the age of the universe was only 550 million years old. The rate of star formation in it is 10 times greater than the Milky Way