0 Talk Subatomic particle Edit History Redirected from Particle Subatomic particles are the building blocks of matter and energetic reactions within matter. Types of particlesEdit antiparticle chion electron graviton lepton antilepton meson metreon muon nadion neutron nucleon omega particle polaron positron proton tachyon tetryon verteron Read more De Sitter space was a concept that was first postulated by a Human physicist. It was a meta-etheric De Sitter space Quantum dating is a process by which an objects age can be found, presumably by analysis at the quan Quantum dating A Type IV civilization was a classification of technology advancement of a civilization. It was base Type IV civilization Related Categories Category: Science Add category External Sponsor Links