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Genesis 1:3-5 King James Version (KJV)
3 And God said, Let there be light: and there was light.
4 And God saw the light, that it was good: and God divided the light from the darkness.
5 And God called the light Day, and the darkness he called Night. And the evening and the morning were the first day. https://www.biblegateway.com/passage/?search=Genesis+1:3-5&version=KJV
Science uncovers the origin of the first light in the Universe
‘Let there be light’ isn’t just biblical. It’s science
... After centuries of investigating the origins of the Universe, science has finally uncovered what physically happened to “let there be light” in space.
... So where did this light — the first light in the Universe — first come from? It didn’t come from stars, because it predates the stars; in the beginning, there was exponentially expanding space, and it was the end of that epoch — the end of cosmic inflation — that gave rise to the matter, antimatter, and radiation that would give rise to the first light we can see in the Universe ...
The cosmic history of the entire known Universe shows that we owe the origin of all the matter within it, and all the light, ultimately, to the end of inflation and the beginning of the Hot Big Bang. Image credit: ESA and the Planck Collaboration / E. Siegel (corrections)
The distant Universe, as viewed here through the plane of the Milky Way, consists of stars and galaxies, as well as opaque gas and dust, going back as far as we can see. But beyond the last star in the Universe, there’s still more light. Image credit: 2MASS
The Universe is: Expanding, cooling, and dark. It starts with a bang! #Cosmology Science writer, astrophysicist, science communicator & NASA columnist.