Why can not we see the moment of creation of the universe?
You've probably heard that seeing the sky is equal to seeing in the past. Even the moon we see is a picture of a second old. Sun warms us in pleasant sunny afternoon actually look at our star since eight minutes. That is such a dramatic example is the Andromeda Galaxy. When we look through a telescope, in fact we see the appearance of Andromeda from 2.5 million years ago.
This happens because of the speed of light which is final and is 300.000km / sec. Because the distance of distant objects we measure using light, ie on the basis of how well it is necessary to come to the observer.
Using this idea, and given that the Big Bang occurred about 13.7 billion years ago, we are not supposed to see the creation of the universe if you equip with very good equipment?
The answer is no.
The reason is simple and stems from the fact that in the real moments after the Big Bang, the light simply did not exist. Photons have occurred after the weak nuclear force and electromagnetic force are separated. However, they would not have seen anything, because the whole universe will be thick because new found light will not be able to travel freely.
From 10 seconds to 380 thousand years after the Big Bang, the universe photons, neutrons, protons and atoms and established future. After that, the space has reached a low enough temperature to create a first element on which the light first started to travel freely. Just then our universe became visible, and it is the earliest moment of existence which we can observe.
The first light has its own name - called microwave background radiation, and it's the oldest thing we can see, thanks to the special instruments such as WMAP and Planck spacecraft.
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