CMC'S NEWS' REVIEW (VII)

Marc Dorca Fernàndez

Summary:
By measuring the rotation of gas and stars that make up our galaxy, scientists have found that there is a lot of dark matter between the Solar System and the center of Milky Way. 

According to calculations by the researchers is five times more abundant than ordinary matter. The problem with this enigmatic matter is that it is very difficult to detect because it does not emit visible light or other radiation so, the question is, how scientists achieve to demonstrate that dark matter exists.

The existence of dark matter was firmly established in 1970. Scientists has observed that, comparing the rotation velocity, something was wrong so thay thought that it would exsists another kind of matter, the dark one. By measuring the rotation of gas and stars that make up our galaxy, scientists have found that there is a lot of dark matter between the Solar System and the center of the Milky Way.

Critical appraisal:

Scientists are always discovering new things. The dark matter is one of the most difficult science field to investigate. It's good for us that they can discover more properties about this kind of matter because it could be so dangerous. So if we know where is this matter, how can it react and which are the hazards of this matter we'll understand lots of things about universe because dark matter hide a lot of information.

Glossary:

Dark matter:  Dark matter is a hypothetical kind of matter that cannot be seen with telescopes but accounts for most of the matter in the Universe.

http://www.lavanguardia.com/ciencia/20150209/54427051567/halladas-pruebas-presencia-materia-oscura-via-lactea.html