neutrinos are like electrons but not charged. its partner in the subatomic universe. no charge and subsiquently no mass. http://www.ps.uci.edu/~superk/neutrino.html part of the electromagnetic spectrum?? gamma rays are also electrons, no charge and no significant mass. part of the electromagnetic spectrum if we are able to detect gamma rays through devices such as a geiger counter, than why is it so darn diffucult to detect neutrinos. i am however familiar with the process of discovering neutrinos with the massive chamber of heavy water, and another with chlorine. etc....... 3 kinds , yadi yadi yada. detecting neutrinos in a MASSIVE tank of chlorine after ~3 weeks only about 7 atoms interacted with the neutrinos (because of no charge) which were i think it was argon, or xeon gas. something like that. if it is so diffucult to detect with this kind of space and since takes so long to detetct neutrinos in this kind of space, how is it possible to detect gamma rays? which it too, has no electrical charge. if these 2 particles are so alike, and we are able to detect the gamma ray particles with devices such as a type of geiger counter? my point im trying to get to her guys is, if the neutrino and the gamma particle both have 0 mass and 0 charge. can both pass through almost anything without attraction of another particle due to charge, than how are we able to detect gamma rays so easily and neutrinos not? neutrinos are everywhere. billions of trillions per seccond through your finger. if gamma rays are so dangerous because they have the potiential to pass through cells, than why arent neutrinos so dangerous??? they pass through us just as easily as neutrinos if not more. right???:surprised pardon my spelling and grammar mistakes.