Beyond standard model.
1. Gravity 2. Dark matter 3. Dark energy 4. Matter-Antimatter asymmetry problem. 5. Magnetic Monopole.
DM interacts only gravitational effect. Also, DM be able to interact weak force. DM doesn’t interact that EM, Strong force with matter. We can’t see DM via light.
Dark matter halo Halo Galaxy
DM is very mystery objects. But DM is interesting subjects. We have many problems to solve out. We don’t know anything about that, yet...
But!!!!! We will find a answer. always we did… Thank you.