Related by context. Frequent words. (Click for all words.) 67 muon 64 neutrino 62 WIMPs 61 subatomic particle 61 nuclei 61 muons 60 positrons 60 neutrinos 60 cuprates 59 excitons 59 Higgs particle 59 Gamma rays 59 Hawking radiation 59 photons 59 atomic nuclei 58 antiprotons 58 planetary nebulae 58 excitations 58 exciton 57 Photons 57 quark gluon plasma 57 atomic particles 57 gravitational wave 57 quanta 57 alpha particles 57 redshifts 57 bosons 57 magnetar 57 Crab Nebula 57 fermions 57 positron 57 osmium 57 FRET 57 chromophores 57 active galactic nuclei 57 Neutrinos 57 neutrons 57 photon 56 quantized 56 Type Ia supernovae 56 QDs 56 GRB # 56 GeV 56 Bose Einstein condensate 56 electron density 56 gamma rays 56 supersymmetry 56 GRBs 55 dye molecules 55 isomers 55 chloroplasts 55 adenine 55 COROT 55 interferometry 55 phonons 55 plasmons 55 dimers 55 rocky planets 55 morphologies 55 cytosol 55 ejecta 55 hydrogen atom 55 solar nebula 55 biological molecules 54 anisotropy 54 supernovae 54 dopants 54 photonic crystal 54 elliptical galaxies 54 organic molecules 54 spacetime 54 Fig. 1A 54 terrestrial planets 54 super Earths 54 spectroscopic 54 quark 54 Gamma ray bursts 54 organelles 54 oxygen atom 53 frequency comb 53 confocal microscopy 53 planets circling 53 shorter wavelengths 53 chirality 53 krypton 53 subatomic particles 53 visible wavelengths 53 X ray emission 53 superfluid 53 colliders 53 infrared spectroscopy 53 picoseconds 53 eukaryotic cells 53 silicates 53 Fluorescence 53 Metamaterials 53 spectrally 53 hydrogen ions 53 Cosmic rays 53 nanoshells 53 atoms