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(Click for frequent words.) 64 antihelium 4 62 antiparticle 61 neutralinos 60 antiproton 59 fermion 59 J# +# [002] 59 cometary material 59 Higgs bosons 58 weakly interacting 58 antineutrinos 58 electrons orbiting 58 antiprotons 58 Muons 58 geoneutrinos 57 Bose Einstein Condensate 57 antiparticles 57 antineutrino 57 proton proton collisions 57 accelerator mass spectrometry 57 supersymmetric particles 57 colliding protons 57 strange quark 57 muon 57 magnetic monopole 57 bosonic 57 spectroscopically 57 helium atoms 57 spectroscopic analysis 57 proton antiproton collisions 57 carbonaceous chondrites 56 CAIs 56 boson 56 isotopic ratios 56 mesons 56 polaritons 56 Mössbauer 56 nanohorns 56 Tevatron experiments 56 gluon 56 magnetic monopoles 56 hydrogen nuclei 56 nucleon 56 alkali atoms 56 asteroidal 56 nuclei 56 neutralino 55 photosystem 55 chondrites 55 electron neutrinos 55 atomic nuclei 55 antihydrogen 55 chondritic 55 starburst galaxies 55 NMR spectra 55 nucleons 55 baryon 55 quasicrystal 55 protoplanet 55 leptons 55 quantum particle 55 gamma rays emitted 55 DZero experiment 55 W boson 55 sunlike stars 55 boron atoms 55 Fermi LAT 55 SNe Ia 55 tau neutrinos 55 monodisperse 55 extrasolar 55 strange quarks 55 dipole moment 55 metalloproteins 55 sparticles 55 crystalline silicates 54 supersymmetric 54 Martian meteorites 54 crystal lattices 54 nanoclusters 54 Rydberg atom 54 lunar meteorites 54 transiting exoplanets 54 electrons protons 54 ultracold atoms 54 californium 54 helium atom 54 Fig. 3b 54 antimatter particles 54 elongated orbits 54 isotope ratios 54 trimers 54 scanning electron microscopes 54 relativistic particles 54 superheavy elements 54 BaBar 54 diffraction patterns 54 protons collide 54 neutral mass spectrometer 54 tholins 54 PSR J# 54 SUSY 54 Epsilon Eridani 54 emit photons 54 nebular 54 Spectroscopic 54 supersolid 54 positronium 54 vibrationally excited 54 type Ia supernova 54 spatially resolved 54 microlensing events 54 excitation energies 54 Pluto Charon 54 absorption spectra 54 Scorpii 54 spectral measurements 54 polarimetry 53 gamma ray photons 53 dopant atoms 53 APXS 53 intrinsic brightness 53 electron volt 53 Z boson 53 IR spectra 53 eclipsing binary 53 positron 53 supergiant stars 53 Spectrograph 53 YBCO 53 neutron spectrometer 53 graphite whiskers 53 Cassini magnetometer instrument 53 3He 53 superheavy element 53 BaBar experiment 53 Kuiper belt objects 53 KBOs 53 crystallites 53 catalytically active 53 neutrons 53 meson 53 Mott insulator 53 electrons positrons 53 muons 53 BLG #Lb 53 gravitons 53 gravitational microlensing 53 electron pairing 53 COROT 53 photon energies 53 smallest exoplanet 53 quasicrystals 53 Collider Detector 53 planetesimals 53 neutrino experiments 53 excitons 53 noble gases 53 X ray spectrometer 53 millisecond pulsar 53 WIMPs 53 superpositions 53 DZero 53 stellar occultations 53 orbital resonance 53 Murchison meteorite 53 vibrational modes 53 scanning tunneling microscopy STM 53 ultracold gases 53 Churyumov Gerasimenko 53 kaons 53 electron neutrino 53 spectroscopic techniques 53 helium nuclei 52 nanobacteria 52 electron tunneling 52 photoionization 52 coated nanotubes 52 chondrules 52 iron arsenide 52 kT 52 Earthlike planet 52 CdSe 52 interstellar grains 52 magnetic anisotropy 52 elemental composition 52 icosahedral 52 nucleosynthesis 52 NanoSIMS 52 lanthanides 52 GeV 52 high redshift galaxies 52 KamLAND 52 Rydberg atoms 52 comet dust 52 Imaging Spectrometer 52 proton radius 52 rotating neutron stars 52 isotope fractionation 52 cometary dust 52 Brookhaven Relativistic Heavy 52 micrometre sized 52 particle acceleration 52 retrograde orbits 52 antihydrogen atoms 52 supercurrent 52 photon fluorescence 52 superfluids 52 SAXS 52 distant supernovae 52 X ray binaries 52 particle 52 B meson 52 astrometric 52 YORP effect 52 RHESSI 52 microquasar 52 nanoantennas 52 comet McNaught 52 Magnetars 52 hadron 52 Supplementary Table 52 Fig. 2b 52 boron nitride 52 GALEX 52 superposed 52 circumstellar 52 stony meteorites 52 magnetic excitations 52 orbital eccentricity 52 diffraction pattern 52 potentially habitable 52 Kepler #b 52 carbon isotopes 52 carbonaceous chondrite 52 binary asteroid 52 sterile neutrino 52 quinone 52 tardigrades 52 Hipparcos 52 exoplanetary 52 absorption coefficient 52 Kuiper belt object 52 gravitationally lensed 52 Astrophysics Cambridge Mass. 52 Wolf Rayet stars 52 spherules 52 spherically symmetric 52 bucky balls 52 nanoprobe 52 entangled quantum 52 spectroscopic observations 52 radial velocity technique 52 galactic cosmic rays 52 X ray absorption spectroscopy 52 electron orbiting 52 SMBHs 52 infrared spectra 52 colliders 52 ion flux 52 ε 52 microcrystals 52 powder diffraction 52 silicon monoxide 52 submicrometer 52 cesium atoms 52 electron affinities 52 Nanoprobe 52 gravitational lenses 52 SN #A 52 planetesimal 52 SWCNT 52 Bosons 52 valence electrons 52 VLTI 52 protoplanetary 52 X ray diffraction 52 quantum oscillations 52 electron positron 52 Fermions 52 Tevatron collider 52 cm -3 52 interstellar dust grains 52 atoms 52 Gliese #c 51 P/# A2 51 fluorescence quenching 51 cosmic ray collisions 51 osmium 51 unconventional superconductivity 51 scanning microscopy 51 X ray pulses 51 neutron radiation 51 dimer 51 phonon 51 quark gluon plasma 51 pnictides 51 fermions 51 desorbed 51 vanadium oxide 51 O OREOS 51 proton antiproton 51 Crab Pulsar 51 VIRTIS 51 Crystallographic 51 nanorings 51 oxygen isotope 51 nematode worm Caenorhabditis elegans 51 fig. S1 51 positrons 51 shear modulus 51 photon microscopy 51 Bose Einstein condensates 51 Bose Einstein condensation 51 WASP #b 51 Beta Pictoris b 51 SQUIDs 51 nanomagnets 51 fluorescent molecules 51 ultracold molecules 51 merging galaxies 51 protostar 51 photoemission 51 fluorescence spectroscopy 51 γ 51 ultracold temperatures 51 photoelectron spectroscopy 51 phosphorus atom 51 Ray Spectrometer 51 Dirac fermions 51 ultracold polar molecules 51 antiquarks 51 blazar 51 Ohmoto 51 isotopic compositions 51 cosmic ray particles 51 icy moons 51 alpha particles 51 prokaryote 51 photoelectron 51 proton proton 51 magnetoresistance 51 electron proton 51 airbursts 51 lunar regolith 51 elemental abundances 51 carbonate globules 51 fermionic 51 infall 51 extrasolar planet 51 ZnSe 51 Mossbauer 51 nucleotide sequences 51 dimers 51 antiferromagnets 51 tokamak 51 FRET 51 neutron diffraction 51 Anthony Remijan 51 super Earths 51 picogram 51 orbited Jupiter 51 B mesons 51 deuterium tritium 51 fig. S2 51 angstrom resolution 51 Neutral Mass Spectrometer 51 lepton 51 Galilean moons 51 neutrino oscillations 51 exo planets 51 ionization mass spectrometry 51 galactic disk 51 helium ions 51 endospores 51 Stadermann 51 planetary nebulae 51 ytterbium 51 COROT 7b 51 spectroscopic 51 red supergiants 51 trans Neptunian objects 51 Kuiper Belt Object 51 SCIAMACHY 51 ultracold 51 paramagnetic 51 impactors 51 neutron generator 51 millisecond pulsars 51 diamagnetic 51 proton decay 51 AGNs 51 biomolecule 51 barium titanate 51 cesium atom 51 gamma rays X rays 51 circular dichroism 50 planets orbiting distant 50 martian meteorites 50 electron microprobe 50 ion traps 50 nanosized 50 HARPS spectrograph attached 50 homochirality 50 TrES 4 50 meteoritic material 50 Higgs particle 50 AB Aurigae 50 Bullet Cluster 50 optical spectra 50 stoichiometry 50 cuprate superconductors 50 cosmic strings 50 Corot 9b 50 axions 50 MWNT 50 neutrino mass 50 radial velocity method 50 nuclides 50 Fermilab accelerator 50 baryons 50 lunar crust 50 Kuiper Belt Objects 50 laser desorption 50 Moon Mineralogy Mapper M3 50 Weakly Interacting Massive Particles 50 Astrophysical 50 macromolecule 50 fermionic atoms 50 Fig. 1A 50 neutrino oscillation 50 subatomic particle 50 toroid 50 spectrographs 50 primitive meteorites 50 magnetars 50 meteoroid 50 arcsecond 50 electron doped 50 astatine 50 mammalian fatty acid 50 silicate dust 50 photochemical reactions 50 emit photon 50 diatomic 50 Alfvén waves 50 atom smashers 50 protoplanets 50 magnons 50 Comet Halley 50 spherical particles 50 MINOS 50 radial velocity measurements 50 bacterial genomes 50 carbonyl sulfide 50 electric dipole 50 ARPES 50 Super Kamiokande 50 accelerator mass spectrometer 50 silica particles 50 gravitational redshift 50 magnetospheric 50 radial velocity 50 diffusion coefficient 50 ESO VLT 50 extrasolar planetary systems 50 berkelium 50 nanometric 50 electron orbits 50 aerosol particles 50 C#H# 50 OGLE TR #b 50 adsorbate 50 luminosities 50 sized planets orbiting 50 quasiparticles 50 dinitrogen 50 topological insulators 50 gamma ray emission 50 photochemistry 50 accretion disks 50 Borexino 50 trillionths 50 Rayleigh scattering 50 reionization 50 Fe Mn 50 pentaquark 50 weak gravitational lensing 50 emit X rays 50 donor acceptor 50 phyllosilicates 50 muon neutrino 50 GQ Lupi 50 particle detectors 50 nanomotors 50 magnetisation 50 XF# [002] 50 ionize 50 cuprate 50 Planetary Transits 50 quantum capacitance 50 brown dwarfs 50 planet orbiting 50 numerical simulations 50 soliton 50 SN #gy 50 cobalt atom 50 Tempel Tuttle 50 ultrananocrystalline diamond 50 superfluid helium 50 Ultracold 50 graphitic carbon 50 red supergiant 50 magnetic flux 50 GJ#b 50 HL Tau 50 planetary Transits 50 protoplanetary discs 50 ab initio calculations 50 figs. 50 ionise 50 perchlorate salts 50 Experimentally 50 hydrogen helium 50 protons 50 gravitationally bound 50 radioactive decay 50 bolide 50 Higgs Boson particle 50 backscattered 50 SMBH 50 microscopic specks 50 onboard Chandrayaan 50 Physikalisch Technische Bundesanstalt PTB 50 electron transistor 50 attosecond 50 Entangled photons 49 Doppler measurements 49 Aspergillus nidulans 49 Corot 7b 49 Cancri e 49 electron accelerator 49 nucleate 49 electrically conducting 49 nanodroplets 49 Bose Einstein 49 electronvolts 49 quantum mechanically 49 Jenniskens 49 spontaneous fission 49 ejecta 49 deuterium hydrogen 49 micrometre 49 crystallite 49 detect gravitational waves 49 moons Phobos 49 tetrahedral 49 retrograde orbit 49 magnon 49 Fermi telescope 49 #x# ^ 49 lunar soil 49 planets circling 49 Galaxy Evolution 49 Earthlike planets 49 nanorod 49 surface plasmon resonance 49 RRATs 49 colloidal nanocrystals 49 solar nebula 49 quasiparticle 49 Warmbein 49 Cassini ion 49 micronucleus 49 Hubble observations 49 chlorine peroxide 49 valence electron 49 Krimigis 49 z = 49 energetic electrons 49 baryonic 49 rubidium atoms 49 CoRoT 9b 49 hadrons 49 detect gamma rays 49 GEO# 49 interstellar clouds 49 photons particles 49 scintillator 49 Higgs singlet 49 Jülich 49 alkali metal 49 protostars 49 chiral molecules 49 planemos 49 electron scattering 49 Higgs boson particle 49 Peter Grünberg 49 Milky Way halo 49 polymorphs 49 cuprates 49 Fraunhofer ISE 49 JILA joint 49 dynamical evolution 49 Alpha Particle 49 pentacene molecule 49 Apophis asteroid 49 tokamaks 49 chemically reactive 49 protoplanetary disk 49 Sushil Atreya 49 yttrium barium copper 49 globulars 49 dipole magnets 49 pions 49 spectroscopic technique 49 z ~ 49 ferromagnetism 49 corona discharge 49 Convection Rotation 49 VRC# [001] 49 scanning tunneling microscopy 49 oxygen isotopes 49 ion microscope 49 planet Uranus 49 hydrophobic interactions 49 asteroid 49 hydrides 49 Dauphas 49 gravitational wave 49 interstellar particles 49 oppositely charged 49 gadolinium oxide 49 agarose gel 49 helicity 49 Electron Microscope 49 sodium atoms 49 Hadron collider 49 Alycia Weinberger 49 actinide 49 exoplanets orbiting 49 fluorescent nanoparticles 49 moonlets 49 muon neutrinos 49 globular clusters 49 spin excitations 49 inelastic scattering 49 GRB #B 49 orbitals 49 coated nanoparticles 49 presolar grains 49 electron density 49 ultraviolet wavelengths 49 impactor spacecraft 49 planetary magnetospheres 49 type Ia supernovae 49 sulfur isotope 49 magnesium diboride 49 Kuiper Belt object 49 inertial confinement fusion 49 infalling 49 rocky planets 49 Antennae Galaxies 49 electron orbitals 49 blackbody 49 totipotent 49 extragalactic 49 σ 49 Confocal microscopy 49 Hubble Space Telescope HST 49 Comet Hartley 49 EPOCh 49 massless particles 49 ULIRGs 49 Protons 49 hemoglobins 49 electrons behave 49 liquid xenon 49 bilayer graphene 49 calorimeter 49 electron ion 49 enzyme kinetics 49 nucleotide substitutions 49 backscattering 49 magnetization 49 DSSCs 49 functionalize 49 exosphere 49 isotopic composition 49 graphene sheet 49 noctilucent clouds 49 albedo reflectivity 49 protoplanetary disks 49 magnetic vortices 49 antimatter atoms 49 solar neutrinos 49 moons orbiting 49 electrons emitted 49 Fullerenes 49 PSR B# 49 Microscopy Electrochemistry 49 polystyrene spheres 49 unreacted 49 silicates 49 x ray diffraction 49 methanogenesis 49 anisotropy 49 microbial nanowires 49 birefringence 49 potassium atoms 49 stellar occultation 49 Avishay Gal Yam 49 intermetallic 49 piconewtons 49 asymptotic freedom 49 proto cluster 49 electron volts eV 49 NWs 49 Raman scattering 49 tetramers 49 BP Piscium 49 TrES 49 globular cluster 49 Wide Angle Search 49 nitrogen atoms 49 SPICAM 49 NASA Far Ultraviolet 49 ESA XMM Newton 49 nanosheets 49 nanolaser 49 CoRoT 48 distant quasars 48 scanning electron 48 moonlet 48 carbonate minerals 48 Feshbach resonance 48 Accelerator Mass Spectrometry 48 Crab pulsar 48 particle detector 48 lithium hydride 48 Viking landers 48 fission yeast 48 ion collisions 48 hypervelocity stars 48 magnetic tweezers 48 W bosons 48 Tellurium 48 phytochrome 48 EPOXI spacecraft 48 CERN LHC 48 dipolar 48 outermost planet 48 transiting exoplanet 48 cosmic ray 48 x ray diffraction microscopy 48 sulfur isotopes 48 MPQ 48 multiplex assay 48 wavefunction 48 transcriptomics 48 Spectrometer 48 absorption spectroscopy 48 airglow 48 teraelectronvolts TeV 48 g cm 48 redshifts 48 interstellar dust clouds 48 X ray diffraction pattern 48 Richard Mushotzky 48 nanocluster 48 GRB# 48 emits X rays 48 planet gravitational tug 48 rotifer 48 tau neutrino 48 gravitational acceleration 48 circularly polarized light 48 Interferometric 48 planetary nebulas 48 orbiting gamma ray 48 emission spectrometer 48 NASA ICESat 48 NEAs 48 clumpiness 48 Allende meteorite 48 photolysis 48 Microlensing 48 Pascale Ehrenfreund 48 laser spectroscopy 48 helium isotopes 48 thermonuclear fusion 48 Phys. Rev. Lett 48 spectroscope 48 ion beams 48 bosons 48 YU# 48 interconversion 48 VHE gamma rays 48 Raman spectra 48 HAT P 48 amorphous calcium carbonate 48 ploidy 48 mineralogical composition 48 helical structures 48 #P/Churyumov-Gerasimenko 48 terrestrial planets 48 absorbs ultraviolet 48 qubit quantum 48 fluorescence intensity 48 particles 48 circularly polarized 48 solitons 48 atomic particles 48 graviton 48 hydrated minerals 48 collide protons 48 newtons 48 elastic moduli 48 deuterium 48 Eta Carinae 48 supernova SN 48 Neutron stars 48 magnesium ion 48 Upsilon Andromedae 48 Hot Jupiters 48 iron pnictides 48 dielectric permittivity 48 antiparallel 48 RQ# 48 unpaired electrons 48 Keck telescopes 48 borane 48 carbon isotope ratios 48 laser pulses 48 nanomesh 48 neutron scattering experiments 48 hydrogen atoms 48 enthalpy 48 fluorescence spectra 48 Composite Infrared Spectrometer 48 nanocrystals 48 multiphoton 48 gamma ray telescope 48 binary quasar 48 smallest extrasolar planet 48 hydrogen atom 48 platinum Pt 48 Impactor 48 extrasolar planets orbiting 48 photocurrent 48 gamma ray photon 48 spectral signatures 48 Super Earths 48 X ray observatories 48 thermodynamically stable 48 superlattices 48 interstellar dust particles 48 Big Bang atom smasher 48 formate 48 momenta 48 spintronic 48 brown dwarf 48 Fermilab Tevatron 48 topological defects 48 Bose Einstein condensate 48 emits gamma rays 48 uranium Schewe 48 anisotropic 48 alpha emitter 48 monochromator 48 Toutatis 48 meteorites 48 sphericity 48 occultations 48 lunar equator 48 presolar 48 ZrO 2 48 galactic mergers 48 magma ocean 48 photosystems 48 Kaluza Klein 48 silica spheres 48 Gliese #d 48 phosphorus atoms 48 ZnS 48 elliptical galaxies 48 energetic cosmic rays 48 orbital velocity 48 Fig. 1d 48 superatoms 48 branes 48 oxygen isotope ratios 48 Kuiper Belt objects 48 distant quasar 48 self assembled monolayers 48 Type Ia 48 disulfide bond 48 plastid 48 organometallic 48 circumstellar disk 48 HD#b 48 Photoemission 48 Eridani 48 neutron 48 ESA Herschel 48 G#.# +#.# 48 ESO PR 48 supernova remnants 48 highly elliptical orbits 48 fundamental constants 48 porphyrin 48 metastable 48 vanadium dioxide 48 particle beams 48 chalcogenide 48 deuterium atoms 48 photons emitted 48 galaxy redshift 48 ALH# 48 chiral molecule 48 Keck Interferometer 48 nanocrystalline 48 exo planet 48 concretions 48 micelles 48 silica nanoparticles 48 micron thick 48 moss Physcomitrella patens 48 mass spectroscopy 48 ALICE experiment 48 cometary 48 novas 48 photon counting 48 heavy fermion 48 superconduct 48 adsorb 48 dye molecules 48 Magnetospheric 48 metallicity 48 quantum superposition 48 Diviner 48 hydrogen ions 48 ceria 48 meteoritic 48 nanoprobes 48 gravitational radiation 48 Buckminsterfullerene 48 radiative recombination 48 Casimir cavity 48 cm ^ sup 48 C/# [001] 48 Particle 48 QDs 48 electron bunches 48 Alfven waves 48 X ray binary 48 piezoelectric properties 48 nanopore sequencing 48 isotope ratio 48 vesicle fusion 48 TGFs 47 superluminal 47 semiconducting nanotubes 47 semiconducting nanowires 47 proton 47 Adam Riess 47 helium nucleus 47 Cherenkov radiation 47 dimming starlight 47 EDXRF 47 XMM Newton observations 47 LAGEOS 47 colocalization 47 gaseous planet 47 reentry capsule 47 nanocells 47 electron spins 47 TiO2 nanoparticles 47 oxygen atom 47 reaction kinetics 47 gold nanoclusters 47 nanodiamond 47 ferroelectricity 47 nanodiamonds 47 neutrino 47 biomineralization 47 X ray observatory 47 JILA scientists 47 emission spectroscopy 47 periodicities 47 hydrogen isotopes 47 paleomagnetic 47 keV 47 exoplanet atmospheres 47 X ray crystallographic 47 scale invariance 47 photon detector 47 submillimetre wavelengths 47 nanobubbles 47 leachability