Amphithéâtre Marguerite de Navarre, Site Marcelin Berthelot
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Abstract

For century, the galaxies that surround us have been classified by the Hubble tuning fork or sequence, from elliptical, lenticular, to spiral and irregular galaxies, the latter being in the minority. This sequence may not have been present at the beginning of the Universe, and the Hubble telescope showed distorted galaxies, made up of pieces, in thefirst7   billion years. However, the James Webb telescope in the infrared, gives a more coherent view of galaxies, and a Hubble sequence that forms earlier.

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