Is there any evidence for dark matter?

Question

I have always heard about dark matter, but I do not know what it means, what its uses are, and does it really exist?

In: Chemistry

Answer 1

ELI5: We have noticed that shit spins a lot faster than it should with how much mass we see and what physics of gravity tells us. .

So we formed two hypotheses, one is that our laws are wrong, this one has not so much support and doesn’t seem to work too well. The second is that there’s a lot more mass than we can see, and this mass is “dark” matter. We have no idea what this could possibly be and there has been no direct evidence for it.