What was the first color in the Universe?

What color is the universe? The first thing that comes to mind when we begin to ask a similar question, looking up at the night sky, of course is black — the universal color of the universe. However, we lose sight of the fact that the universe is in real life truly immersed in a sea of color, which manifests itself in the blue-white flicker of young stars, in the purple glow of clouds of hydrogen gas and the huge diversity of colors used by the ancient nebulae. In addition to the colors that we can observe with the naked eye, there are also flashes of x-rays and gamma rays and even an ancient microwave radiation that refuses to see the human eye. The space is filled with flowers, the visible and the invisible, however, until the appearance of an abundance of flowers in space, there was only one color — the first color of the Universe.

NASA provided the illustration, which depicts the evolution of the Universe. Left — Big Bang, to the right is a modern view of the universe

How the universe was born?

The day of the birth of the Universe happened about 13.8 billion years ago, which contributed to the so-called Big Bang, not only created our universe, but you with you. It is believed that the Big Bang was a bright flash of light that appeared from the depths of the dark, but it’s not quite an accurate description of the appearance of unusual space phenomena.

The big Bang could not occur in empty space: it was filled with energy that literally tore the tiny particle of the future universe from the inside. Immediately after the explosion, the temperature of the newborn Universe was so high that the light itself was completely absent. The space environment had to be cool for a split second, before he could receive the first photons. Thus, after about 10 seconds after its birth, the universe entered the so-called photonic era. In the age of the photons, the temperature of the young Universe was still too high in order to allow light to penetrate a sufficiently dense plasma. Color did not appear as long as the nucleus and electrons of the universe has not cooled so much that they could connect to the atoms. In order to so much cool, it took the Universe 380,000 years old.

The early universe was incredibly hot and consisted of large amounts of helium, lithium, deuterium and hydrogen

When the universe had cooled sufficiently, it was a cosmic cloud, composed of hydrogen and helium, the diameter of which was about 84 million light years. This is the glow called the cosmic microwave background. Over billions of years, glow has been able to cool to such an extent that its temperature reaches less than 3 degrees above zero. For comparison with his first appearance, when the temperature of the Universe reached about 3000 degrees Kelvin, the early universe had a bright yet warm glow.

See also: Can the Big Bang be turned back?

The first color in the Universe

Through the study of the properties of a blackbody, we have a good idea of what may be the first color of the universe. The early universe had almost uniform temperature, and its light was absorbed by the principle of black body. Most of the objects, depending on the material of which they consist, get their color, but the color of a black body depends only on its own temperature. At a temperature of about 3000 K is completely black, the body acquires a bright orange glow, which can be compared with the light of old old 60-watt bulb.

In the next few hundred million years the universe has a weak orange glow blush, because the process of expansion and cooling will stop. In the end, the universe will become black. After about 400 million years have formed the first blue-white star. In the process of emergence and development of new stars and galaxies, the cosmos will begin to acquire many new colors.

In 2002 Ivan Baldry and Carl Glazebrook through a complex formula able to identify the true color of the Universe. In the end, they got the color pale-brown tan, which researchers have called the color “cosmic latte”

But even this color will remain unchanged. The aging and dying of old stars will remain only a deep red glow dim brown dwarfs. However, after trillions of years even the light of the stars will completely disappear, because of what the universe will turn into a vast bottomless sea of black.

Despite this sad fact, we still have a long millions and billions of years during which humanity will have the opportunity to admire the bright night view from the surface of our bright blue planet.

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