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(Click for frequent words.) 70 muons 68 antiprotons 68 antiparticles 67 antiparticle 67 positron 66 protons 66 neutrinos 65 electron neutrinos 65 photons 65 neutrons 64 neutrino 64 antiproton 64 B mesons 64 gamma rays 64 neutralinos 63 mesons 63 antimatter particles 63 hydrogen atoms 63 antihydrogen 62 muon 62 nuclei 62 subatomic particles 61 atoms 61 helium atoms 61 electron positron 61 particle beams 61 Gamma rays 61 proton 61 photon 61 electrons 61 atomic nuclei 61 sodium atoms 60 tau neutrinos 60 cosmic rays 60 B meson 60 electron beams 60 kaons 60 helium nuclei 59 atomic particles 59 helium ions 59 axions 59 rubidium atoms 59 energetic electrons 59 antimatter 59 hadrons 59 pions 59 baryon 59 quark gluon plasma 59 WIMPs 59 supernovae 59 antineutrinos 59 massless particles 59 starburst galaxies 59 baryons 59 supernova explosions 59 excitons 58 deuterium atoms 58 exoplanets orbiting 58 X ray emission 58 galaxy clusters 58 supermassive black hole 58 cosmic ray 58 cosmic ray particles 58 fermions 58 antihydrogen atoms 58 type Ia supernova 57 interstellar clouds 57 muon neutrinos 57 supernova remnants 57 Bose Einstein condensate 57 planetesimals 57 brown dwarf 57 Bose Einstein condensates 57 antiquarks 57 AGNs 57 supernova explosion 57 supermassive black holes 57 ions 57 meson 57 Bullet Cluster 57 quasars 57 magnetar 57 electron volts 57 deuterium 57 accretion disks 57 gravitational radiation 57 blazars 57 gamma ray emission 57 neutron star 57 active galactic nuclei 57 subatomic particle 57 GeV 57 elliptical galaxies 57 colliding protons 57 galaxies 57 D meson 57 particles 56 alpha particles 56 surface plasmons 56 brown dwarfs 56 RHIC 56 electrons orbiting 56 relativistic particles 56 neutron stars 56 quasar 56 hydrogen nuclei 56 strange quark 56 X ray pulses 56 hadron 56 SN #A 56 millisecond pulsar 56 distant supernovae 56 relativistic protons 56 energetic gamma rays 56 galactic disk 56 bosonic 56 exciton 56 electron neutrino 56 supersymmetric particles 56 circumstellar 56 red supergiants 56 dwarf galaxies 56 proton antiproton collisions 56 fermion 56 pulsar 56 laser pulses 56 gravitationally bound 56 muon neutrino 55 merging galaxies 55 gamma ray burst 55 galactic cosmic rays 55 Alfvén waves 55 nucleon 55 ionized gas 55 blue supergiant 55 shorter wavelengths 55 SUSY 55 solar neutrinos 55 particles WIMPs 55 plasmons 55 antihelium 4 55 nucleons 55 Rydberg atom 55 SN #gy 55 X ray wavelengths 55 W boson 55 millisecond pulsars 55 Cherenkov radiation 55 infall 55 electron 55 distant quasars 55 pion 55 hydrogen atom 55 Hawking radiation 54 HD #b [002] 54 gold nanorods 54 planetary nebulae 54 phonon 54 proton proton collisions 54 gravitons 54 Antennae Galaxies 54 neutralino 54 W bosons 54 neutron 54 electronvolts 54 dwarf galaxy 54 type Ia supernovae 54 quark 54 gravitational interactions 54 Type Ia supernova 54 quarks 54 protostar 54 charm quark 54 Muons 54 ejecta 54 hypervelocity stars 54 cosmic ray collisions 54 WASP #b 54 gravitational waves 54 proton collisions 54 Brookhaven Relativistic Heavy 54 positronium 54 Eta Carinae 54 proton beams 54 Neutron stars 54 GRBs 54 spherically symmetric 54 X ray binary 54 laser pulse 54 GRB # 54 baryonic 54 galaxy cluster 54 X ray binaries 54 electrons positrons 53 electrons protons 53 microquasar 53 Fomalhaut b 53 Higgs bosons 53 plasmon 53 Type Ia supernovae 53 VHE gamma rays 53 leptons 53 protoplanetary disk 53 accretion disk 53 photons particles 53 spiral galaxies 53 supernovas 53 elliptical galaxy 53 polaritons 53 colliders 53 particle 53 novae 53 distant galaxy 53 attosecond pulses 53 blue straggler 53 starburst galaxy 53 afterglows 53 interacting galaxies 53 fluorescent molecules 53 dimers 53 strange quarks 53 luminous galaxies 53 proton proton 53 J# +# [002] 53 RS Ophiuchi 53 optical wavelengths 53 dwarf spheroidal galaxies 53 nanoantennas 53 spherical particles 53 redshift 53 boson 53 nanobubbles 53 infrared photons 53 bosons 52 diffract 52 globular clusters 52 Bose Einstein Condensate 52 rotating neutron stars 52 photon energies 52 blazar 52 globular cluster 52 quantum particle 52 particle beam 52 V# Mon 52 X ray photons 52 extrasolar 52 ultraviolet wavelengths 52 evanescent waves 52 gravitationally 52 axion 52 photons emitted 52 diamagnetic 52 GRB #B 52 solar nebula 52 silicon monoxide 52 rocky planets 52 Lyman alpha 52 Epsilon Eridani 52 red supergiant 52 ULIRGs 52 emit X rays 52 KamLAND 52 pulsars 52 proton particles 52 particle accelerators 52 Gravitational waves 52 Photons 52 Rayleigh scattering 52 sunlike star 52 galaxy M# [002] 52 solitons 52 interstellar medium 52 dye molecules 52 supermassive 52 HM Cancri 52 supernova remnant 52 diffraction pattern 52 strangelets 52 interstellar dust grains 52 gamma ray bursts 52 hot Jupiters 52 phonons 52 quantum mechanically 52 optical spectra 52 electron volts eV 52 nanoclusters 52 ion beams 52 diffraction patterns 52 proto galaxies 52 planets circling 52 Supernovae 52 ionised 52 impactors 52 circumstellar disk 52 helical structures 52 active galactic nucleus 52 distant galaxies 52 magnetars 52 supernova 52 gamma rays emitted 52 entangled photons 51 trimers 51 nanocrystals 51 chondrules 51 femtosecond timescale 51 electron bunches 51 quantum dots 51 Supernova #A 51 MeV 51 rubidium vapor 51 carbon cenospheres 51 interstellar dust clouds 51 SNe 51 gamma ray photons 51 quantum correlations 51 magnetic fields 51 antihelium 51 gluon 51 Henize #-# 51 positronium atoms 51 sterile neutrinos 51 globulars 51 unpolarized 51 alpha particle 51 protoplanets 51 nanotubes 51 Carina constellation 51 HD#b 51 uncharged particles 51 electron volt 51 CAIs 51 Gal Yam 51 noble gases 51 strangelet 51 accreting 51 substorm 51 comet 51 supergiant star 51 protons collide 51 cosmic gamma rays 51 femtoseconds 51 superluminal 51 ionize 51 planetary nebula 51 icy comets 51 osmium 51 helium atom 51 Earths orbiting 51 lithium atoms 51 VLTI 51 exoplanets 51 weakly interacting 51 moonlets 51 molecules 51 Bose Einstein condensation 51 magnetic flux 51 cesium atoms 51 cometary material 51 distant quasar 51 entangled quantum 51 photon beam 51 supergiant stars 51 eclipsing binary 51 gravitational microlensing 51 Type 1a supernovae 51 galactic halo 51 ultracold atoms 51 magnesium ions 51 supermassive stars 51 subatomic 51 magnons 51 orbital angular momentum 51 Hipparcos 51 quasicrystal 51 Alfven waves 51 wavelengths 51 particle acceleration 51 planemos 51 BaBar experiment 51 superfluid 50 oppositely directed 50 Magnetars 50 excitations 50 supersolid 50 SWNTs 50 GRB# 50 hydrogen ions 50 super Earths 50 beryllium ion 50 Milky Way halo 50 Crab Pulsar 50 infalling 50 X ray telescopes 50 plasmonic 50 sterile neutrino 50 surface plasmon 50 GQ Lupi 50 quantum dot 50 metallicity 50 scintillator 50 Kuiper belt objects 50 gamma ray flares 50 Hot Jupiters 50 star Gliese 50 VY Canis Majoris 50 hydroxyl radicals 50 weak gravitational lensing 50 photonic crystal 50 circumstellar disks 50 Wolf Rayet star 50 ferromagnetic 50 interstellar dust 50 XTE J# 50 observable universe 50 cosmological constant 50 neutron spectrometer 50 SMBHs 50 planet orbiting 50 luminosities 50 BP Piscium 50 dipole moment 50 spectroscopically 50 energetic cosmic rays 50 pulsed laser 50 Relativistic Heavy Ion Collider 50 circularly polarized light 50 ENAs 50 redshifts 50 ultracold 50 lensing galaxy 50 Hubble observations 50 SN #D 50 Fermions 50 nucleobases 50 attosecond 50 Z boson 50 Fermilab Tevatron 50 galaxies collide 50 SN#A 50 gravitational lens 50 potassium atoms 50 spacetime 50 protons neutrons 50 spectroscopic observations 50 hydrogens 50 Jupiter magnetosphere 50 protostars 50 deuterium nuclei 50 cosmic strings 50 fluorescing 50 quasiparticle 50 Hanny Voorwerp 50 AB Aurigae 50 BP Psc 50 comets asteroids 50 magnetic reconnection 50 soliton 50 MG J# +# 50 hydrogen helium 50 CdSe 50 cosmic ray protons 50 photoionization 50 lepton 50 tetramers 50 aerosol particles 50 electron spins 50 silica nanoparticles 50 Beta Pictoris b 50 galaxy formation 50 femtosecond pulses 50 photon fluorescence 50 Andromeda Galaxy 50 CMEs 50 tokamak 50 terrestrial planets 49 cuprates 49 Type Ia supernovas 49 smashing protons 49 organic molecules 49 G#.# +#.# 49 polarimetry 49 Higgs singlet 49 nanoprobes 49 nanoparticles 49 antineutrino 49 semiconductor nanocrystals 49 cosmic phenomena 49 gold nanoshells 49 californium 49 Protons 49 magnetic monopoles 49 electron positron pairs 49 keV 49 neutrino beam 49 magnetic nanoparticles 49 ion collisions 49 neutrino oscillations 49 neutron beams 49 neutral mass spectrometer 49 polariton 49 tau neutrino 49 Gamma ray bursts 49 nanoprobe 49 magnetization 49 photon absorption 49 Super Kamiokande 49 Saturn magnetosphere 49 branes 49 particle detectors 49 crystalline silicates 49 SMBH 49 Trojan asteroids 49 comets 49 Raman scattering 49 galaxy NGC 49 elongated orbits 49 emit photons 49 chromophores 49 X ray emitting 49 photosystem 49 Crab Nebula 49 porphyrin 49 cosmic ray electrons 49 chlorophylls 49 Kazantzidis 49 nanodiamonds 49 superlens 49 oxidants 49 comet nucleus 49 Fermi telescope 49 RHESSI 49 spicules 49 absorbs photons 49 photocatalysts 49 gravitational wave 49 nanomotors 49 adenine 49 femtosecond laser pulses 49 neutron beam 49 Cepheids 49 meteoroids 49 brightnesses 49 quantum particles 49 quasiparticles 49 millimeter wavelength 49 SNR #-#.# 49 SN #E 49 Cosmic rays 49 ganglion cells 49 Einstein equations 49 visible wavelengths 49 Zeta Ophiuchi 49 sunlike stars 49 gluons 49 Neutrinos 49 asteroids 49 tholins 49 chromophore 49 binary quasar 49 runaway thermonuclear 49 ionised gas 49 synchrotron x ray 49 nanohorns 49 quanta 49 nucleosynthesis 49 THz radiation 49 x ray pulses 49 BECs 49 fluorescently tagged 49 infrared radiation 49 planets orbits 49 SMM J# 49 gravitational 49 ionise 49 cosmic neutrinos 49 femtosecond laser pulse 49 microwave photons 49 coronal mass ejection 49 radioactive decay 49 UV photons 49 micelles 49 emit photon 49 excitation 49 silicate dust 49 nanocrystal 49 jovian 49 atomic nucleus 49 photoelectron 49 planets orbiting 48 optical lattices 48 CMB radiation 48 Rydberg atoms 48 gravitational interaction 48 fission reactions 48 fermionic 48 galactic clusters 48 electrons emitted 48 Small Magellanic Cloud 48 constellation Cassiopeia 48 comet dust 48 nanospheres 48 microbubbles 48 cosmologists 48 TGFs 48 gamma ray 48 synchrotron X ray 48 Virgo cluster 48 Bessel beam 48 spherical nanoparticles 48 transiting planets 48 ab initio calculations 48 foreground galaxy 48 RRATs 48 galaxy 48 Arches Cluster 48 sparticles 48 atom smashers 48 phytochrome 48 QCLs 48 GJ #b [002] 48 X ray observatories 48 nitrogen atoms 48 superfluids 48 polystyrene spheres 48 magnetic excitations 48 Iapetus 48 detect gamma rays 48 wavefunction 48 coronal loop 48 high redshift galaxies 48 fluorescence microscope 48 Type Ia 48 intrinsic brightness 48 fermionic atoms 48 delocalized 48 electron scattering 48 protoplanet 48 ionization 48 CoRoT 7b 48 picosecond 48 electron muon 48 cadmium selenide 48 Higgs particle 48 nanoshells 48 faint galaxies 48 ceria 48 meteoroid 48 backscattered 48 proton decay 48 supersymmetric 48 x ray beams 48 particle collisions 48 icy moons 48 terahertz waves 48 relativistic jets 48 photochemical reactions 48 optical lattice 48 synchrotrons 48 planet Gliese #g 48 zinc ions 48 qubit 48 Weakly Interacting Massive Particles 48 ROSAT 48 cobalt atom 48 interferometry 48 hadron collider 48 gamma ray bursts GRBs 48 filaments 48 hydrogen deuterium 48 geoneutrinos 48 photonic crystals 48 absorption spectra 48 reionization 48 nanodots 48 electron orbits 48 titanium oxide 48 electronic excitations 48 Andromeda galaxy 48 interferometers 48 colloidal particles 48 exo planets 48 Tempel 1 48 galactic cores 48 tera electron volts 48 PSR J# 48 FRET 48 toroid 48 nanocages 48 Comet Tempel Tuttle 48 superlattice 48 electron density 48 proplyds 48 cometary dust 48 buckyballs 48 superfluid helium 48 shorter wavelength 48 Z bosons 48 fainter objects 48 Pieter van Dokkum 48 Higgs Boson particle 48 nebular 48 nanoparticle 48 viral particles 48 ultraviolet photons 48 MPc 48 superheavy element 48 electron flux 48 DZero experiment 48 bilayer graphene 48 rubidium atom 48 micron sized 48 dimer 48 manganese atoms 48 dipolar 48 planet orbits 48 magma ocean 48 oxygen atoms 48 Geminga 48 colloidal crystals 48 Seyfert galaxies 48 Mott insulator 48 radiative recombination 48 primitive meteorites 48 Bok globules 48 helices 48 superpositions 48 Kailash Sahu 48 electric dipole 48 oppositely charged 48 liposomes 47 nanomagnets 47 surface plasmon resonance 47 lipid vesicles 47 lightwaves 47 infrared laser pulses 47 moonlet 47 graphene layers 47 quantum superposition 47 GJ#b 47 HL Tau 47 Adam Riess 47 astrophysicists 47 Cosmic Microwave Background CMB 47 nanodiamond 47 protoplanetary discs 47 SWCNT 47 Milky Way galaxy 47 XMM Newton observations 47 microcavities 47 spatially resolved 47 dirty snowballs 47 reflection nebula 47 RS Oph 47 momenta 47 Virgo Cluster 47 phyllosilicates 47 melittin 47 UDFy # 47 silicon atoms 47 nuclides 47 ion beam 47 spectroscopic 47 nanodot 47 redshifted 47 relativistic 47 Milky Way Galaxy 47 particles emitted 47 nebulae 47 exoplanetary 47 planets 47 cosmic particles 47 diffraction 47 gravitational attraction 47 nanopillars 47 fluorescent probes 47 zinc sulfide 47 Fermilab accelerator 47 Murchison meteorite 47 radial velocity 47 waveguides 47 X ray beams 47 neutrino oscillation 47 Coma Cluster 47 quantum entanglement 47 hydrides 47 conduction electrons 47 smallest exoplanet 47 sonoluminescence 47 Gliese #c 47 metallic nanotubes 47 Triangulum 47 #gy 47 KBOs 47 chiral molecules 47 cosmological distances 47 circular orbits 47 TrES 4 47 silicates 47 nanostars 47 RXTE 47 photonic crystal fiber 47 cosmic rays collide 47 planet HD #b 47 particle colliders 47 graviton 47 aluminum oxide 47 amyloids 47 qubits 47 diffracted 47 giant elliptical galaxy 47 God Particle 47 superconducting 47 spiral galaxy 47 R Coronae Borealis 47 paramagnetic 47 nanorod 47 NASA Chandra 47 molecular orbitals 47 electron orbitals 47 ion traps 47 luciferin 47 Gliese #e 47 lanthanides 47 CMB photons 47 fluorophores 47 catalytically active 47 Cancri e 47 photoemission 47 photoactivation 47 vortices 47 electron spin 47 ionized 47 orbitals 47 nanobacteria 47 colliding galaxies 47 graphene flakes 47 electron accelerators 47 coronal mass ejections 47 Bose Einstein condensate BEC 47 interparticle 47 magnetosphere 47 terahertz frequencies 47 γ 47 photon pairs 47 V# Puppis 47 nanotube 47 Bosons 47 Cassini ion 47 Raman spectroscopy 47 corona 47 solar flares 47 luminosity 47 airbursts 47 emits X rays 47 Saturn rings 47 photonic bandgap 47 stellar occultations 47 CERN LHC 47 filamentary 47 nanometer sized 47 Saturn outermost ring 47 electron orbiting 47 MWCNTs 47 NASA Voyager spacecraft 47 ultrashort pulses 47 radiotracer 47 submillimetre wavelengths 47 gamma ray telescopes 47 gamma ray burst GRB 47 Keck Interferometer 47 Fermi LAT 47 Trifid Nebula 47 Cat Paw Nebula 47 decoherence 47 Gliese #d 47 optical excitation 47 boron atoms 47 LHC experiments 47 sulfate aerosols 47 WMAP satellite 47 ε 47 photon detector 47 gravitational wobbles 47 Einstein cosmological constant 47 HIP #b 47 hydroxyl molecules 47 water vapor 47 antimatter atoms 47 Active Galactic Nuclei 47 oscillations 47 Pulsars 47 Oort Cloud 47 RNA strands 47 oxygen ions 46 P/# A2 46 Red Rectangle 46 photoluminescence 46 picoseconds 46 X ray beam 46 quantum tunneling 46 ray Space Telescope 46 cosmic microwave background 46 reactants 46 EPOXI 46 neutrino detectors 46 synchrotron emission 46 surface plasmon polariton 46 nanolaser 46 filamentary structure 46 thiols 46 protons electrons 46 teraelectronvolts TeV 46 planetary embryos 46 neutron radiation 46 supersymmetry 46 silicon nanowire 46 bolometers 46 electron diffraction 46 solar corona 46 planets moons 46 beryllium ions 46 submillimeter wavelengths 46 photosphere 46 samarium 46 electromagnetic flux 46 angular momentum 46 titania nanotubes 46 Big Bang Machine 46 trillion electron volts 46 DZero 46 synchrotron 46 icosahedral 46 Proxima Centauri 46 Large Magellanic Cloud 46 nanosized 46 stellar nurseries 46 Upsilon Andromedae 46 PSR J# +# 46 liquid xenon 46 multiwavelength 46 olivine 46 supernova SN 46 chemically reactive 46 thermonuclear fusion 46 photon beams 46 nanorods 46 electron beam 46 SN #C 46 spinning neutron 46 X ray afterglow 46 tetrahedra 46 nanocells 46 microparticles 46 planets orbiting distant 46 mRNA molecules 46 crystal lattices 46 absorption spectroscopy 46 astrophysical objects 46 negative refraction 46 gaseous 46 magnetospheric 46 chromosphere 46 Kuiper belt 46 planet Uranus 46 terahertz radiation 46 proton antiproton 46 hydroxyl radical 46 carbonate minerals 46 thermonuclear explosion 46 protoplanetary disks 46 suns 46 gravitational lensing 46 dipoles 46 fission 46 superstrings 46 amorphous calcium carbonate 46 europium 46 semiconducting nanowires 46 planetary nebulas 46 molecule 46 hydrophobic molecules 46 berkelium 46 valence electrons 46 polarized electrons 46 proton neutron 46 ionized particles 46 carbonate globules 46 giant gaseous planets 46 Crab pulsar 46 ARPES 46 comet orbit 46 Bug Nebula 46 quantum bits 46 ionized gases 46 sonofusion 46 cavity QED 46 chlorosomes 46 heliosphere 46 tumor cells