Since the New Section of Biology , I think the Emergence of the Universe Is A Good Beginning to Study of Biology
There are several explanations for the origin of the Universe. There, on that subject, religious and scientific explanations. Discussed here the scientific view, ie how scientists seek to explain the phenomena observed in the Universe. No one knows for sure, but scientists calculate that the universe has come into existence about \(15\) billion years. It seems impossible to say such a thing -\(15\) billion years is a long time!
What led scientists to think that the universe has had a beginning ?
The Hubble telescope captures birth of stars to show how they were billions of years. Analyzing starlight, it is possible to know how fast they are moving away or approaching us , its chemical composition , age , temperature and mass , among other things .
The scientists then found something unexpected : the galaxies are moving away from Earth !
For you to better understand what is happening , make several balls of paint with a pen on the rubber of the balloon ( balloon birthday ) and start blowing. See what happens to the distance between the ink marks .
The analysis of starlight shows that galaxies are moving away from each other, as well as the marks made in the bladder . This happens because the universe , such as the bladder of our example , is expanding .
But if they 're expanding, we can conclude that , in the past galaxies were closer . The further back in time, they were closest .
We can assume, then a time when all matter in the universe was compressed into a single point , infinitely long in huge temperatures . Then what happened what cietistas call the big bang . It was the beginning of the universe , there would have occurred about \(15\) billion years .
After the explosion , the initial temperature , which was more than a trillion degrees Celsius , began to decline , and how atoms make up matter today , originated from the protons , electrons and other particles .
First , the atoms are grouped in clouds of gas . About a billion years later , the first stars and galaxies appeared .
Next Note I'll Start Tell About Stars !
Here Is The Note About Stars : The Stars