Question

What is Dark matter? What would happen if this dark matter comes in contact with the regular matter? Explain.

Answer 1

The name dark matter refers to the fact that it does not appear to interact with observable electromagnetic radiation, such as light, and is thus invisible (or 'dark') to the entire electromagnetic spectrum, making it extremely difficult to detect usingusual astronomical equipment.

Answer 2

Answer:

According to Newton's first law, an object moving with uniform speed in space does not require any energy to move, but in earth due to viscous forces(friction) event hough an object moves uniformly it requires energy.

So according to Newton's first law an object in a uniform motion does not require any energy to move at a uniform speed, but it requires energy to accelerate(that means it needs energy to speed up or slow up). And an object in rest at space will continue in that state unless a force is given.

So I think all of you guys know that the uniform is expanding. Is it accelerating or expanding at a uniform rate. This was the question that occurred to my mind when I heard about the impact of Newtons law in space. And yureka!

I found out the answer. The universe is accelerating, that means the expansion of universe is not uniform. But according to Newton's first law, anything in space requires an energy to accelerate. So what is making the universe accelerate. It must be something that oppose gravity. And since it is unidentified we named it as dark energy. And the matter made up of dark energy is called dark matter. 68% of the universe is made up of dark energy, 25% dark matter and the remains is occupied by universe

If a dark matter comes in contact with a regular object both the matter gets destroyed but the energy will not.