add galactic bulge central bulge (galaxies) nuclear bulge (galaxies) 43730 NASA Thesaurus 100 100 100 100 100 100 100 100 add galactic clusters galaxy groups 43731 NASA Thesaurus Scope Note RESTRICTED TO CLUSTERS OF GALAXIES; EXCLUDES OPEN CLUSTERS 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 add Galactic cosmic rays 61871 NASA Thesaurus Definition Energetic particles that come from outside the solar system, but generally from within our galaxy-- the Milky Way. 100 100 100 100 100 100 100 add galactic evolution galaxy formation 43733 NASA Thesaurus 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 add galactic halos 61872 NASA Thesaurus Definition The tenuous, spherical cloud surrounding spiral galaxies. It is the locus of old stars and globular clusters. Halos appear to be required, at least to some extent, for the stability of disk galaxies. 100 100 100 100 100 100 100 100 100 100 100 100 100 add galactic magnetic fields 183530 NASA Thesaurus 100 add galactic mass 61873 NASA Thesaurus Definition The total amount of matter contained in a galaxy. 100 100 100 100 100 add galactic nuclei 43736 NASA Thesaurus 100 100 100 100 100 100 100 100 100 100 add galactic radiation 43737 NASA Thesaurus 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 add Galactic Radiation Exp Background sats 183531 NASA Thesaurus 100 add galactic radio waves 61874 NASA Thesaurus Definition Source Definition SP-7 1968 Radio waves emanating from our galaxy. 100 100 100 100 100 add galactic rotation 43739 NASA Thesaurus 100 100 100 100 100 100 100 100 100 add galactic structure 43740 NASA Thesaurus 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 add galactic winds 43741 NASA Thesaurus 100 100 100 100 add galactose 43742 NASA Thesaurus 100 add Galatea 61875 NASA Thesaurus Definition Source Definition NASA A natural satellite of Saturn, orbiting at a mean distance of 62,000 kilometers. 100 100 add galaxies 61876 NASA Thesaurus Definition Source Definition SP-7 1968 Vast assemblages of stars or nebulae, composing island universes separated from other such assemblages by great distances. 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 add Galaxy aircraft 183532 NASA Thesaurus 100 add galaxy formation 183533 NASA Thesaurus 100 add galaxy groups 183534 NASA Thesaurus 100 add galaxy interaction 183535 NASA Thesaurus 100 reference active galactic nuclei 37949 NASA Thesaurus reference active galaxies 37950 NASA Thesaurus reference agglomeration 38096 NASA Thesaurus reference big bang cosmology 39318 NASA Thesaurus reference C-5 aircraft 39819 NASA Thesaurus reference ~ clusters 40525 NASA Thesaurus reference compact galaxies 40727 NASA Thesaurus reference cooling flows (astrophysics) 41011 NASA Thesaurus reference corotation 41054 NASA Thesaurus reference cosmic x rays 41087 NASA Thesaurus reference cosmology 41089 NASA Thesaurus reference dark matter 41426 NASA Thesaurus reference density wave model 41599 NASA Thesaurus reference elliptical galaxies 42527 NASA Thesaurus reference evolution (development) 42841 NASA Thesaurus reference extraterrestrial radio waves 42989 NASA Thesaurus reference faint objects 43060 NASA Thesaurus reference globular clusters 44058 NASA Thesaurus reference GREB satellites 44187 NASA Thesaurus reference Gum nebula 44275 NASA Thesaurus reference halos 44366 NASA Thesaurus reference hexoses 44614 NASA Thesaurus reference Hubble diagram 44815 NASA Thesaurus reference hydrogen clouds 44911 NASA Thesaurus reference infrared cirrus (astronomy) 45302 NASA Thesaurus reference interacting galaxies 45436 NASA Thesaurus reference intergalactic media 45462 NASA Thesaurus reference interstellar gas 45528 NASA Thesaurus reference interstellar magnetic fields 45529 NASA Thesaurus reference interstellar radiation 45532 NASA Thesaurus reference Maffei galaxies 46786 NASA Thesaurus reference Magellanic clouds 46792 NASA Thesaurus reference mass distribution 47108 NASA Thesaurus reference Neptune (planet) 47996 NASA Thesaurus reference Neptune satellites 47998 NASA Thesaurus reference nonthermal radiation 48281 NASA Thesaurus reference peculiar galaxies 49080 NASA Thesaurus reference quasars 50410 NASA Thesaurus reference radiative transfer 50518 NASA Thesaurus reference ring galaxies 51130 NASA Thesaurus reference Seyfert galaxies 51759 NASA Thesaurus reference shell galaxies 51804 NASA Thesaurus reference solar activity effects 52203 NASA Thesaurus reference Solar Radiation 1 satellite 52268 NASA Thesaurus reference Solar Radiation 3 satellite 52269 NASA Thesaurus reference spiral galaxies 52692 NASA Thesaurus reference star distribution 52804 NASA Thesaurus reference starburst galaxies 52808 NASA Thesaurus reference stellar evolution 52876 NASA Thesaurus reference stellar mass 52884 NASA Thesaurus reference stellar motions 52888 NASA Thesaurus reference stellar radiation 52894 NASA Thesaurus reference stellar winds 52901 NASA Thesaurus reference ~ structures 53080 NASA Thesaurus reference Uhuru satellite 54412 NASA Thesaurus reference velocity distribution 54709 NASA Thesaurus reference x ray sources 55297 NASA Thesaurus reference gravitational instability 55547 NASA Thesaurus reference gamma ray sources (astronomy) 55568 NASA Thesaurus reference absorption spectra 60502 NASA Thesaurus reference accretion disks 60515 NASA Thesaurus reference astrophysics 60745 NASA Thesaurus reference barred galaxies 60841 NASA Thesaurus reference BL Lacertae objects 60906 NASA Thesaurus reference brightness distribution 60956 NASA Thesaurus reference celestial bodies 61022 NASA Thesaurus reference corpuscular radiation 61253 NASA Thesaurus reference cosmic noise 61261 NASA Thesaurus reference cosmic rays 61262 NASA Thesaurus reference disk galaxies 61439 NASA Thesaurus reference dwarf galaxies 61492 NASA Thesaurus reference electromagnetic radiation 61567 NASA Thesaurus reference energetic particles 61619 NASA Thesaurus reference extraterrestrial radiation 61709 NASA Thesaurus reference gamma ray astronomy 61882 NASA Thesaurus reference gamma ray bursts 61883 NASA Thesaurus reference Hubble constant 62138 NASA Thesaurus reference irregular galaxies 62335 NASA Thesaurus reference local group (astronomy) 62525 NASA Thesaurus reference mass 62636 NASA Thesaurus reference mass to light ratios 62640 NASA Thesaurus reference metallicity 62681 NASA Thesaurus reference Milky Way Galaxy 62720 NASA Thesaurus reference missing mass (astrophysics) 62736 NASA Thesaurus reference molecular clouds 62755 NASA Thesaurus reference nebulae 62817 NASA Thesaurus reference North Polar Spur (astronomy) 62865 NASA Thesaurus reference Orion nebula 62959 NASA Thesaurus reference ~ radiation 63336 NASA Thesaurus reference radio jets (astronomy) 63355 NASA Thesaurus reference radio sources (astronomy) 63358 NASA Thesaurus reference red shift 63419 NASA Thesaurus reference rotation 63530 NASA Thesaurus reference solar wind 63736 NASA Thesaurus reference space plasmas 63778 NASA Thesaurus reference star clusters 63855 NASA Thesaurus reference star formation rate 63857 NASA Thesaurus reference stars 63861 NASA Thesaurus reference stellar mass accretion 63881 NASA Thesaurus reference stellar systems 63885 NASA Thesaurus reference Virgo galactic cluster 64264 NASA Thesaurus reference massive compact halo objects 64447 NASA Thesaurus reference Advanced Composition Explorer 64449 NASA Thesaurus reference Sunyaev-Zeldovich effect 64494 NASA Thesaurus reference large-scale structure of the universe 64609 NASA Thesaurus reference Population II stars 64612 NASA Thesaurus reference protogalaxies 64613 NASA Thesaurus reference Tully-Fisher relation 64666 NASA Thesaurus reference central bulge (galaxies) 182642 NASA Thesaurus reference nuclear bulge (galaxies) 184717 NASA Thesaurus