with mr physicist pava muckluck tells us what makes the facilities so special. to me. if you want to know what is out there in the skies you start with what you can see with your own eyes you investigate the visible. in the past century we've built big telescopes to investigate also the radio portion of the electromagnetic radiation and satellites which investigate the ultra violet. but if you focus only on the electromagnetic radiation you're missing on the a big part of information which is actually coming to us from space meaning. the scientists who study cosmic rays are not looking for life that comes from space they're looking for political views. ninety percent of these particles are protons nuclei off the hydrogen atom most of the rest are helium nuclei which one percent comprising electrons and heavy in the u.k.