The Use of Gravitational Lensing to Pick Up Dark Matter

There's a ton of dark matter around and not all of it falls into the same gravitational wells that whole galaxy. A lot of it will clump together like you can imagine there are going to be what we call K aloes, which is just imagine a cloud of dark matter. But it isn't deep enough to gather up enough gas that the gas can get together and ignite nuclear fusion. You might have a bit of gas there, but maybe not enough to even be visible, but it would be able to be picked up by gravitational lensing. If it weren't for the fact that it were such a faint signal on any individual case. So it's almost like a galaxy of dark