Related by context. Frequent words. (Click for all words.) 50 electron volts 47 protons 45 particle beams 43 particle beam 43 trillion electron volts 43 beams 42 subatomic particles 42 proton beams 42 atomic particles 42 proton beam 42 laser pulses 41 picosecond 41 Large Hadron Collider 41 particle collisions 41 GeV 40 positrons 40 particle collider 40 photons 39 muons 39 collider 39 femtoseconds 39 electrons 39 picoseconds 38 particle accelerators 38 CERN 38 Cern 38 RHIC 38 laser pulse 38 electron beams 38 Large Hadron Collider LHC 38 nanoscale 37 wavelengths 37 particle accelerator 37 whizzing 37 atoms 37 excitons 37 gamma rays 37 distant galaxies 37 Physicists 37 TeV 37 billowing 37 millionths 37 glinted 37 atom smasher 36 hurtling 36 flames licked 36 orbiting 36 magnetic fields 36 neutrinos 36 velocities 36 spewed ash 36 electromagnets 36 gamma ray burst 36 beamline 36 supernova explosions 36 neutrons 35 galaxy clusters 35 waveguides 35 auroras 35 zigzagged 35 billowed 35 X ray beam 35 cosmic rays 35 opposite directions 35 Tempel 1 35 nanotubes 35 largest atom smasher 35 DNA strands 35 nanocrystals 35 Ambulances raced 35 ionized gas 35 superconducting magnets 34 subatomic 34 terabits 34 quantum dot 34 rover Opportunity 34 oscillate 34 quantum dots 34 optical telescopes 34 resonant frequency 34 reactor 34 superconducting 34 X ray Observatory 34 supernovae 34 GPa 34 nanotube 34 Smoke billowed 34 National Ignition Facility 34 beam 34 terabit 34 braked 34 Electrons 34 rubidium 34 laser beams 34 quasar 34 accretion disk 34 orbits 34 WIMPs 33 phonons 33 cosmic microwave background 33 zoomed