NEW YORK: A research team from the California Institute of Technology (Caltech) recently said it has detected a galaxy that is 13.2 billion years old and also is likely the furthest galaxy from ours ever found.
Now, the universe is only 13.8 billion years old, so this galaxy might be the oldest in existence today!
Caltech graduate student Sirio Belli comments, “The galaxy we have observed is named EGS8p7, is unusually luminous and may be powered by a population of unusually hot stars.”
Belli continues, “It may have special properties that enabled it to create a large bubble of ionised hydrogen much earlier than is possible for more typical galaxies at these times.”
You see, immediately following the Big Bang, our universe was just a big goulash of hyper-charged particles and photons of light. After maybe half a billion years, the first galaxies began to emerge and they reionized the neutralized gases.
But before this, clouds of neutral hydrogen atoms would have, quite simply, absorbed the radiation which had been emitted by young and newly-forming galaxies; and this includes the “Lyman-alpha line” spectral signal galaxies of hot hydrogen gas base.
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