the scientists who study cosmic rays are not looking for mind that comes from space they're looking for post because. ninety percent of these particles of protons nuclei off the hydrogen atom most of the rest are helium nuclei with one percent comprising electrons and heavy nucleons such as iron or nitrogen. based on their energy we can roughly categorize the cosmic rays into free man kotecha things we have the lower energy governor's race which are coming from the sun. mostly because it's so close then we have the middle range of energy use oh where are concentrates coming from within our galaxy and there is a good evidence that these cosmic rays are coming from supernova which are these massive explosions of stars. but only in the very very highest energies we believe cosmic rays are coming from outside our galaxy and there is