Although at the beginning of the year Hubble astronomers and a California team using Hubble also claimed to have discovered a galaxy 13.1 and 13.2 billion years old, respectively , in none of the cases could the claim be proven by calculations. and by other methods. In contrast, according to the scientific community, the galaxy discovered by the Japanese and named " SXDF-NB1006-2 " is more " plausible " because its existence and characteristics can be demonstrated by unanimously accepted methods .

The current accepted theory of the Universe is that it was born from an explosion, the Big Bang , about 13.7 billion years ago. Using state-of-the-art optical and infrared telescopes, astronomers "catch a glimpse" of the very first days of the Universe .

Also, according to specialists, they would have verified that the proportion of neutral hydrogen gas from the time when the Universe was only 750 million years old was higher than today . Therefore, 200-500 million years after the Big Bang, the dense parts of the clouds of neutral hydrogen would have contracted under their own gravity, forming the first stars and galaxies.