The James Webb Space Telescope has given us some absolutely jaw dropping images of deep space so far. From eerie spiral galaxies to the furthest looks back in time to when the universe was still in its infancy. Now NASA’s newest space telescope is making discoveries, and it has just identified the 4 furthest galaxies ever observed.
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00:00The James Webb Space Telescope has given us some absolutely jaw-dropping images of deep
00:08space so far.
00:10From eerie spiral galaxies, to the furthest looks back in time to when the universe was
00:14still in its infancy.
00:15Now NASA's newest space telescope is making discoveries, and it has just identified the
00:20four furthest galaxies ever observed.
00:22They don't look like much, just little specks in a sea of black, and, well, other little
00:26specks.
00:27The oldest of these galaxies is believed to have formed just 320 million years after the
00:32Big Bang.
00:33That means they were formed around 13 billion years ago.
00:36That period of time is called the Epoch of Reionization, an excitatory time in the universe's
00:40history when the first stars were emerging into being, and that might be why all four
00:44of them are rather small galaxies.
00:46None of the galaxies weighs more than 100 million solar masses, which one of the researchers
00:50says for reference, the Milky Way weighs 1.5 trillion solar masses, and they likely have
00:56very low metal content as well.
00:58That's because the closer in time a galaxy is to having been formed after the Big Bang,
01:01the lower its metal composition tends to be, as metal forms in stars, and there were simply
01:06fewer of them.