When we look at the sky at night the endless darkness of the universe Doesn’t it seem like it attracts us?

While our world is full of bright light The same cannot be said about space. Why is there no light in space?

The reason for darkness has nothing to do with the absence of light!

In physics and astronomy circles Olbers paradox This contradiction, known as , can be explained by the theory of space-time expansion.

Because our universe is expanding faster than the speed of light, light from distant galaxies; can be stretched and converted into infrared waves, microwaves and radio waves cannot be detected by human eyes. It appears dark to the naked eye because it cannot be detected.

Stars emit light in all colors, such as ultraviolet or infrared, invisible to the human eye.

According to experts, the reason for this is; Remnants of the Big Bang and scattered by protons/electrons cosmic microwave background light energysays it still has to fill all the space.

Another reason is Space is an almost perfect vacuum. The reason why Earth’s sky is blue is; The molecules that make up the atmosphere emit the blue and violet wavelengths of visible light coming from the sun in all directions, that is, towards our eyes.

But in the absence of matter, light travels in a straight line from the source to the receiver. Because space is a near-perfect vacuum, so is the space between stars and planets will reflect light into our eyes There are virtually no particles. So we can say that this is the reason why we see black.

Space isn’t as dark as you think.

A study published in 2021 in The Astrophysical Journal found that space is bigger than scientists thought. could be less black revealed.

The research team examined the images taken by the spacecraft and extracted all the light from known stars, the Milky Way and possible galaxies. As a result, the background light of the universe is lower than expected. twice as bright They discovered that this was so.

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