What is antimatter and dark matter?
Antimatter is the matter just like the one u are made off but with -1 (the charges of the normale matter) . If the electric charge of an electron is -e that of a positron or antielectron is e. If matter and antimatter collide the explosion energy will be E=2m c^2 (if u forget the kinetic energy) m is the mass of antimatter. Antimatter can create much more powerfull nuclear weapons because all the mass turn into energy. Dark matter is a theoretical matter that cant be seen cause it does not interact with light . We think that it exists because the gallaxies would disintegrate if they were made only of matter, 90% of the gravity that holds stars together can not be acounted for only by the mass of normal matter so there should be something else that keeps our galaxy together. Experiments have been going on for 3 decades to find this illusive matter but nothing has ben found yet. My favourite theory though is that dark matter does not exist and the extra gravity comes from a “shadow galax
