Where is the nearest detectable dark matter?
1 Answer
It's going through our bodies but it is undetectable.
Explanation:
We cannot detect Dark Matter, we only have a slight idea that it exist because of massive mass discrepancies while calculating masses of the galaxies and the gravitational interaction of this Dark Matter onto the Normal matter. The idea of dark matter came from calculating the mass of the galaxies, if there was only normal matter, the mass should be evenly distributed i.e. more mass in the center because of the black hole and stars and as we move further away towards the outskirt of the galaxy into the fluffy gas cloud, the mass should gradually decrease, but this is not the case, scientist have found that that gas cloud also contains enormous mass, this lead to an idea of something similar to Normal matter but has different properties. The best guess is that Dark matter is composed of WIMPS(Weakly interactive Massive Particles) these particles are like neutrinos, they don't interact with normal matter but at the same time much more massive than neutrinos.
If your questions is where we can find Dark Matter, than the answer is that it is everywhere, distributed throughout the universe, about 25% of the universe is made up of Dark Matter compared to only 5% of the normal matter. Scientists also believe certain amount of Dark matter is going through our bodies every second.
