Représentation d'un trou noir avec son disque d'accrétion et un jet d'énergie. © Nasa, Caltech-JPL

The James-Webb reveals the composition of gas around a supermassive black hole

Stephan’s Quintet, a visual grouping of five galaxies located in the constellation Pegasus, was among the first images chosen to illustrate the power of the James-Webb Space Telescope in comparison with that of its predecessor, Hubble. But the JWST not only makes it possible to take sumptuous images, it also performs spectroscopic analyzes revealing the …

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