Dark Matter

Dark matter, doesn't the word relates to something mysterious out there?, Something which is revolving around our minds? Well actually it does!. The question that comes into the mind is "what do we mean by dark matter"?

Dark matter refers to the hypothetical invisible substance in the universe. The universe has fixed shape(as it can be curved by mass) , so where did this mass come from? We know that galaxies also have a fixed shape ,though it changes slightly, but the overall picture seems to be more or less similar because they are bound to that shape.

This shape, the curve due to mass, the "extra mass" all this points to something that is missing out there!! this is referred to as dark matter. Dark because  it is invisible to us and matter because it has mass and occupies the empty space in the universe and provides those galactic bodies a support structure.

The distribution of the content of the universe.
source : Google

Now the term dark energy arises, this may seem to be similar to dark matter but we presently don't know whether these two are the consequence of the same "dark thing".The research is going on and we may soon come a conclusion. But we know that if dark matter bounds the universe then dark energy tends to tear it apart, it is a repulsive force. The reason we are not experiencing this force may be because gravity is little much stronger and that's why we have observed that "red shift" that points that the universe is expanding.

And here comes the most exiting part! GRAVITY vs DARK ENERGY, who will win? Well we don't know the answer but this is sure that if either of the two become extremely powerful then the consequences won't be in our favour! Still this topic remains as one of the most mysterious ones and the mystery never ends!

So that's only for now , stay tuned and don't forget to subscribe to your favourite 

The Mysterious Cosmos

written by

Aviral Srivastava 

find me on Instagram: avirals_22

email me at : aviralsrivastava12@gmail.com