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<center> http://www.eluniversohoy.net/wp-content/uploads/2017/03/876904432663.jpg </center> <center> [Source]( http://www.eluniversohoy.net/el-campo-magnetico-multipolar-de-la-estrella-de-neutrones-mas-brillante/ ) </center>

<h4> Neutron stars is one of several types of stars found in the universe, these in turn are remnants of large stars and are among the classification of the densest objects that can be found in the vastness of the universe. </h4>

<h3>But what is a star in general terms?</h3>

<h5>In simple words, a star is a sphere composed of gas, said gas is attracted to the interior of the same by the gravitational force, in such a way that the pressure of the star increases. As a result of this action, a series of nuclear reactions originate inside the star, where energy is released to the outside in the form of electromagnetic radiation, light and heat.</h5>

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<div class="pull-right"><center><img src="https://i1.wp.com/hipertextual.com/files/2016/03/estrella-de-neutrones.jpg?resize=670%2C413&ssl=1" /><br/><em><a href="https://hipertextual.com/2016/03/estrellas-de-neutrones">Source</a></em></center></div>

**The neutron stars** are formed from the explosion of massive stars, these are approximately four or eight times the mass of our **Sun**. At the moment that these massive stars explode in **supernova** form, they expel their outer layers and leave a very dense **nucleus**, which in turn keeps this core collapsing on it. The next phase in this process, is that gravity is responsible for tightening with great force the material of which the core is composed on itself, so that the **protons and electrons** combine and form **neutrons**. This **supernova** generates an explosion so violent that it produces a rotation at extremely fast speeds, where the neutron star rotates thousands of times in just one second, although with the passage of time this diminishes.



<div class="pull-left"><center><img src="http://www.nationalgeographic.es/sites/spain/files/styles/image_885/public/2517.600x450.jpg" /><br/><em><a href="http://www.nationalgeographic.es/espacio/estrellas-de-neutrones">Source</a></em></center></div>

The result of all this process are the **neutron stars**, which have a diameter between **18 kilometers and 20 kilometers** in size and a mass where its entire nucleus is **50% larger than our Sun**. The **neutron stars** are so incredibly dense that only a handful of their mass would have an equivalent to the weight of billions of tons, these stars have a gravity of about **2,000 million** times stronger than that of **planet Earth** its force of gravity is so strong that the radiation emitted by this star is curved, this phenomenon is called "gravitational lens", thanks to this phenomenon astronomers are able to observe the hidden face of a **neutron star**.


<center>  https://s10.postimg.org/5bbf4kdrt/image.jpg  </center> <center> [Source](https://oneminuteastronomer.com/9237/gravitational-lens/  ) </center>




**As well as there are different types of stars, neutron stars are classified into the two types:**


**Pulsars**: pulsars are stars that have the ability to expel jets of matter with a speed close to the speed of light, these stars when their light focuses on the planet earth, its brightness resembles a lighthouse. In a hypothetical case where in the distant future we are able to travel through space, the pulsars will serve as **stellar cartographic map**, because thanks to this we can establish precisely the exact place of a planet.


<center> https://i.imgur.com/FVPFxQK.gif   </center> <center> [Source]( https://imgur.com/FVPFxQK ) </center>



**Magnetars:** Magnetars is another type of neutron star, these stars have a magnetic field thousands of times stronger than that of a normal neutron star, this magnetic field is of such magnitude, which is the s**trongest magnetic field that has been observed so far**. But not only that, due to its great strength it is able to distort the shape of the atoms of the star.


<center>   https://smd-prod.s3.amazonaws.com/science-green/s3fs-public/mnt/medialibrary/1998/05/20/ast20may98_1_resources/short_movie.gif  </center> <center> [Source]( https://science.nasa.gov/science-news/science-at-nasa/1998/ast20may98_1 ) </center>





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<i> **The universe** is so incredible that it is impossible to imagine all the things it hides, from time to time new discoveries are made in the field of astronomy, discoveries that often disillusion us because they break many theories with respect to certain topics, **but they also help a better understanding of what lies beyond.** </i>



<center> https://i.imgur.com/kMj0vEC.gif </center> <center> [Source](  https://imgur.com/kMj0vEC) </center>

**Source of information** [1](https://hipertextual.com/2016/03/estrellas-de-neutrones) - [2](http://www.astroscu.unam.mx/~wlee/OC/SSAAE/AAE/Objetos%20Compactos/Estrellas%20neutrones.html)


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<center> https://s8.postimg.org/5bgvdz8g5/bannerciencia_V.2.png </center> 

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