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Topic Tree: English   Topic: root  / science  / astronomy  / galaxies 

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SymbolSource Strings
galaxi galaxies , galaxy , galaxie , galaxis , galaxial , galaxys , galaxi  
disk_spiral disk spiral , disks spiral , disk spirals , disks spirals  
spiral_pattern spiral pattern , spiral patterns , spirals pattern  
mass_galaxi mass galaxy , mass galaxies , masses galaxies , masses galaxy  
ga_star gas stars , gas star  
galaxi_center galaxy center , galaxies center , galaxies centers , galaxial center , galaxy centers , galaxies centered  
galaxi_nearbi galaxies nearby , galaxy nearby  
format_galaxi formation galaxies , formation galaxy  
solar_mass solar masses , solar mass  
brightest_galaxi brightest galaxies , brightest galaxy  
galaxi_bar galaxy barred , galaxies barred , galaxy bar , galaxies bars , galaxies bar  
spiral_irregular spiral irregular , spirals irregulars , spirals irregular  
billion_light billion light , billions light  
thousand_galaxi thousands galaxies , thousand galaxies  
galaxi_collect galaxy collection , galaxies collections , galaxies collectively , galaxy collective , galaxy collections , galaxies collecting , galaxies collected  
galaxi_galact galaxy galactic , galaxies galactic  
galact_nucleu galactic nucleus  
neighbor_galaxi neighboring galaxies , neighboring galaxy , neighbors galaxies , neighbor galaxy  
galaxi_radio galaxies radio , galaxy radio  
region_galaxi regions galaxy , region galaxy , regions galaxies , region galaxies  
normal_galaxi normal galaxies , normal galaxy  
pictur_galaxi pictures galaxies , picture galaxy , pictures galaxy , pictured galaxy , picture galaxies  
discov_galaxi discovered galaxies , discover galaxies , discovered galaxy , discovers galaxies , discovering galaxies  
galaxi_messier galaxy messier , galaxies messier  
galaxi_exist galaxies exist , galaxies existed , galaxies exists , galaxy existed , galaxy exist  
visibl_galaxi visible galaxies , visible galaxy , visibility galaxy  
galaxi_sun galaxy sun , galaxies sun  
galaxi_hundr galaxies hundred , galaxies hundreds , galaxy hundreds , galaxy hundred  
galaxi_consist galaxies consist , galaxy consists , galaxies consists , galaxies consisting , galaxies consistently  
hubbl_sequenc hubble sequence  
sc_galaxi sc galaxies , sc galaxy  
galaxi_interact galaxy interactions , galaxies interact , galaxies interactions , galaxy interacting , galaxies interacting , galaxy interaction  
ga_galaxi gas galaxies , gas galaxy  
interstellar_matter interstellar matter  
galaxi_emit galaxies emit , galaxy emits , galaxy emitted , galaxies emitted , galaxy emitting , galaxy emit  
tightli_wound tightly wound  
galaxi_rang galaxies range , galaxy range , galaxies ranging  
nearest_galaxi nearest galaxies , nearest galaxy  
galaxi_30 galaxy 30 , galaxies 30  
cluster_cluster clusters clusters , cluster clusters , clusters cluster , cluster cluster  
galaxi_compos galaxies composed , galaxy composed , galaxies compose  
light_distant light distant  
made_star made stars , made star  
galaxi_result galaxies result , galaxy resulting , galaxy result , galaxies results , galaxies resulting  
core_galaxi cores galaxies , core galaxies , core galaxy , cores galaxy  
galaxi_believ galaxies believed , galaxy believed , galaxies believe  
bar_galaxi barred galaxy , barred galaxies , bar galaxy , bars galaxy , bar galaxies , bars galaxies  
year_big years big  
star_interstellar stars interstellar  
size_galaxi size galaxy , size galaxies , sizes galaxies  
central_bar central bar , central bars  
galaxi_major galaxies major , galaxy major , galaxy majority  
galaxi_lenticular galaxies lenticular , galaxy lenticular  
cloud_galaxi clouds galaxies , cloud galaxy , clouds galaxy , cloud galaxies  
collis_galaxi collision galaxies , collisions galaxies , collision galaxy , collisions galaxy  
light_galaxi light galaxies , light galaxy  
largest_galaxi largest galaxies , largest galaxy  
bulg_center bulge center , bulges centers , bulging center , bulges center  
galaxi_million galaxies million , galaxies millions , galaxy millions , galaxy million  
common_type common type , common types , commons type  
million_star million stars , millions stars  
galaxi_smaller galaxies smaller , galaxy smaller  
galaxi_tend galaxies tend , galaxy tends , galaxies tends , galaxy tend  
categori_galaxi category galaxies , categories galaxies , category galaxy  
galaxi_estim galaxy estimated , galaxies estimated , galaxy estimate , galaxies estimates , galaxies estimate  
galaxi_vari galaxies vary , galaxies varying , galaxies varies , galaxy vary  
galaxi_member galaxy member , galaxies members , galaxy members  
hubbl_classif hubble classification , hubble classifications  
flat_disk flat disk , flat disks  
galact_collis galactic collision , galactic collisions  
gravitation_bound gravitationally bound  
galaxi_central galaxies central , galaxy central  
central_region central region , central regions  
million_solar million solar , millions solar  
year_diamet years diameter , year diameter  
galaxi_refer galaxies referred , galaxy refer , galaxies refer , galaxies reference , galaxy referred , galaxy reference  
classifi_galaxi classify galaxies , classifying galaxies , classify galaxy , classifying galaxy  
galaxi_note galaxy note , galaxies noted , galaxies note  
normal_spiral normal spiral , normal spirals  
milki_andromeda milky andromeda  
rotat_curv rotation curve , rotation curves  
interstellar_ga interstellar gas  
infrar_light infrared light  
galaxi_m87 galaxy m87 , galaxies m87  
light-year_earth light-years earth  
galaxi_recent galaxies recently , galaxies recent , galaxy recent , galaxy recently  
milki_way' milky way's  
galaxi_big galaxies big , galaxy big  
galaxi_arm galaxy arms , galaxies arms , galaxies arm  
galaxi_locat galaxy located , galaxies located , galaxy location  
dust_lane dust lanes , dust lane  
larger_galaxi larger galaxy , larger galaxies  
galaxi_classif galaxy classification , galaxies classification , galaxy classifications  
size_milki size milky , sizes milky  
group_cluster groups clusters , grouped clusters , group cluster , group clusters , groups clustered  
disk_star disk stars , disks stars , disk star , disks star  
histori_galaxi history galaxies , history galaxy , histories galaxies  
galaxi_evolv galaxies evolve , galaxies evolved , galaxy evolved , galaxies evolving  
galaxi_scientist galaxies scientists , galaxy scientists  
galaxi_compar galaxy compare , galaxy comparable , galaxies compared , galaxies comparable , galaxy compared , galaxies comparing , galaxies compare  
neutral_hydrogen neutral hydrogen  
build_block building blocks  
galaxi_constel galaxy constellation , galaxies constellation  
galaxi_sb galaxy sb , galaxies sb  
de_vaucouleur de vaucouleurs  
galaxi_creat galaxy created , galaxy creating , galaxies created , galaxy create , galaxies create , galaxies creating  
light_emit light emitted , light emit , light emitting  
giant_galaxi giant galaxy , giant galaxies  
200_billion 200 billion  
galaxi_survei galaxy survey , galaxies survey , galaxy surveys , galaxies surveyed  
dwarf_irregular dwarf irregular , dwarf irregulars  
question_galaxi question galaxies , questions galaxies , question galaxy , questions galaxy  
sa_galaxi sa galaxies , sa galaxy  
opposit_direct opposite direction , opposite directions  
galaxi_gener galaxies general , galaxies generated , galaxy general , galaxies generate , galaxy generates  
galaxi_number galaxies number , galaxy number , galaxies numbered , galaxy numbers , galaxies numbers  
center_spiral center spiral , centers spiral , center spirals  
tune_fork tuning fork  
galaxi_produc galaxies produce , galaxies producer , galaxy produces , galaxy produced , galaxies produced  
million_time million times , millions times  
galaxi_list galaxies list , galaxies listed , galaxies lists , galaxy list , galaxy listed  
averag_densiti average density  
galaxi_explain galaxies explain , galaxies explains , galaxy explained , galaxies explaining , galaxy explains  
harlow_shaplei harlow shapley  
hot_ga hot gas  
earli_galaxi early galaxies , early galaxy  
larg_distanc large distances , large distance  
suggest_galaxi suggest galaxies , suggestion galaxies , suggests galaxies  
fall_black falls black , falling black , fall black  
type_activ type active , types active  
galaxi_determin galaxy determined , galaxy determines , galaxy determine , galaxies determines  
nuclear_bulg nuclear bulge , nuclear bulges  
star_held stars held  
10_million 10 million  
galaxi_merger galaxy mergers , galaxy merger , galaxies mergers , galaxies merger  
type_ellipt type elliptical , types ellipticals , type ellipticals , types elliptical , types elliptic  
telescop_galaxi telescope galaxies , telescope galaxy , telescopes galaxy , telescopes galaxies  
galaxi_mean galaxies mean , galaxies meaning , galaxies means , galaxy means , galaxy meaning , galaxy mean  
galaxi_actual galaxies actually , galaxy actually  
bar_star bar stars , bars stars  
rotat_galaxi rotation galaxy , rotating galaxies , rotates galaxy , rotations galaxy , rotating galaxy , rotate galaxy  
major_dwarf major dwarf  
galaxi_shown galaxy shown , galaxies shown  
50_million 50 million  
galaxi_class galaxies class , galaxy class , galaxies classed , galaxy classes , galaxies classes  
galaxi_thought galaxies thought , galaxy thought  
galaxi_characterist galaxy characteristic , galaxy characteristics , galaxies characteristically , galaxies characteristics , galaxies characteristic  
star_actual stars actually , stars actual , star actually  
ellipt_shape elliptical shape , elliptical shapes , elliptic shape , elliptical shaped  
back_time back time  
densiti_wave density waves , density wave  
galaxi_extrem galaxies extremely , galaxy extremely , galaxies extreme  
classif_system classification system , classification systems  
galaxi_come galaxies come , galaxy comes , galaxies comes , galaxies coming , galaxy coming , galaxy come  
home_galaxi home galaxy  
largest_scale largest scale , largest scales  
galaxi_possess galaxies possess , galaxy possesses , galaxies possessing  
type_s0 type s0  
hubbl_galaxi hubble galaxies , hubble galaxy  
galaxi_move galaxies moving , galaxy moving , galaxies move , galaxies moved , galaxy moves  
angular_momentum angular momentum  
larg_cluster large clusters , large cluster  
band_star band stars  
galaxi_exhibit galaxies exhibit , galaxy exhibits  
galaxi_extend galaxy extended , galaxy extending , galaxies extended , galaxies extend , galaxy extends , galaxy extend , galaxies extending  
form_disk forms disk , form disk , form disks , forming disk , formed disks  
morpholog_type morphological types , morphological type , morphology types  
galaxi_disk galaxy disk , galaxies disk , galaxies disks , galaxy disks  
year_galaxi years galaxies , years galaxy , year galaxies , year galaxy  
nebula_andromeda nebula andromeda , nebulae andromeda  
fork_diagram fork diagram  
star_andromeda stars andromeda , star andromeda  
galaxi_due galaxies due , galaxy due  
massiv_black massive black  
flatten_disk flattened disk , flattened disks , flattens disk , flatten disk  
galaxi_giant galaxies giant , galaxy giant , galaxies giants  
burst_star bursts star , burst star , burst stars , bursting stars  
ellipt_ellipt elliptical elliptical , ellipticals ellipticals , ellipticals elliptical , ellipticals ellipticity  
galaxi_dwarf galaxies dwarf , galaxy dwarf , galaxy dwarfs , galaxies dwarfs  
smallest_galaxi smallest galaxies , smallest galaxy  
group_spiral group spiral , groups spiral , group spirals  
big_galaxi big galaxies , big galaxy  
tight_spiral tightness spiral , tight spiral , tightness spirals , tight spirals  
recent_star recent star  
galaxi_present galaxies present , galaxy presentation , galaxy presently , galaxies presently  
amount_ga amounts gas , amount gas  
galaxi_basic galaxy basically  
form_larger form larger , formed larger , forming larger  
halo_dark halos dark , halo dark  
inform_galaxi information galaxy , information galaxies  
galaxi_high galaxies high , galaxy high  
quasar_distant quasars distant , quasar distant  
strong_radio strong radio  
sourc_quasar sources quasars , source quasars , source quasar  
ic_10 ic 10  
galaxi_mass galaxies mass , galaxies masses , galaxy mass , galaxy masses  
collect_galaxi collection galaxies , collection galaxy , collections galaxies , collected galaxies  
year_center years center  
amount_dark amount dark , amounts dark  
form_ellipt form elliptical , forming elliptical , form ellipticals , formed elliptical , forms ellipticals  
newli_form newly formed , newly forming  
galaxi_100 galaxy 100 , galaxies 100  
grand_design grand design  
star_larg stars large , star large  
disk_bulg disk bulge , disk bulging , disks bulges  
orbit_galaxi orbit galaxy , orbit galaxies , orbits galaxy , orbits galaxies , orbiting galaxy  
hubbl_type hubble type , hubble types  
orbit_milki orbit milky , orbiting milky , orbitting milky , orbited milky , orbits milky  
spiral_shape spiral shape , spiral shaped , spiral shapes  
galaxi_huge galaxy huge , galaxies huge  
galact_plane galactic plane  
companion_galaxi companion galaxy , companion galaxies , companions galaxies  
ga_form gas form , gas forms , gas forming  
13_billion 13 billion  
center_mass center mass , centers masses , centers mass  
galaxi_fit galaxies fit , galaxy fit , galaxies fitted  
kinet_energi kinetic energy  
sky_galaxi sky galaxies , sky galaxy  
dark_lane dark lanes , dark lane  
galaxi_lack galaxies lack , galaxies lacking , galaxy lack  
galaxi_1 galaxies 1 , galaxy 1  
entir_galaxi entire galaxy , entire galaxies , entirely galaxy  
galaxi_surround galaxies surrounding , galaxies surrounded , galaxy surrounded , galaxy surrounding , galaxy surroundings , galaxies surround  
galaxi_peopl galaxies people , galaxy people  
10_billion 10 billion  
dust_galaxi dust galaxies , dust galaxy  
galaxi_increas galaxies increases , galaxies increasing , galaxy increase , galaxies increased , galaxy increases , galaxies increase  
dust_make dust make , dust makes  
galaxi_cross galaxies crossed , galaxy crossed  
estim_distanc estimate distance , estimating distances , estimate distances , estimated distance  
design_spiral design spiral , design spirals , designations spirals , designated spirals  
bulg_halo bulge halo  
galaxi_unusu galaxies unusually , galaxies unusual , galaxy unusual , galaxy unusually  
merg_galaxi merging galaxies , merging galaxy , merged galaxies , merged galaxy , merge galaxies , merge galaxy  
galaxi_left galaxies left , galaxy left  
collis_merger collisions mergers , collision merger  
high_densiti high density , high densities  
bright_spiral bright spiral , brightness spiral , bright spirals  
owl_citi owl city  
bound_graviti bound gravity  
s0_galaxi s0 galaxies , s0 galaxy  
000_galaxi 000 galaxies , 000 galaxy  
activ_nucleu active nucleus , activity nucleus  
galaxi_4 galaxy 4 , galaxies 4  
war_galaxi wars galaxies , wars galaxy  
galaxi_3 galaxy 3 , galaxies 3  
coma_cluster coma cluster  
galaxi_detect galaxy detected , galaxies detected , galaxies detectable , galaxies detect  
galaxi_ring galaxy ring , galaxies ring , galaxies ringing  
galaxi_remain galaxy remain , galaxies remain , galaxies remains , galaxies remained , galaxy remained , galaxy remains , galaxies remaining  
galaxi_cosmic galaxies cosmic , galaxy cosmic  
galaxi_virgo galaxies virgo , galaxy virgo  
larg_spiral large spiral , large spirals  
arm_bar arms barred , arms bars , arms bar  
matter_fall matter falls , matter falling  
structur_galaxi structure galaxies , structure galaxy , structures galaxies , structures galaxy  
year_earth years earth  
univers_present universe present  
higher_densiti higher density , higher densities  
galaxi_help galaxies help , galaxy help , galaxies helped , galaxies helps , galaxies helping , galaxy helps  
galaxi_popul galaxy populations , galaxy population , galaxies population , galaxies populate , galaxies populations  
sun_galaxi sun galaxy , sun galaxies , suns galaxy  
20_billion 20 billion  
univers_distant universe distant , universes distant  
plai_import play important , plays important  
cold_dark cold dark  
messier_81 messier 81  
galaxi_spread galaxies spread , galaxy spread  
galaxi_cani galaxy canis  
million_parsec million parsecs , millions parsecs  
grow_larger grow larger , growing larger  
format_ngc formations ngc , formation ngc  
hole_core hole core , holes cores  
characterist_spiral characteristic spiral , characteristics spirals , characteristics spiral , characteristic spirals  
year_reach years reach , years reaching  
galaxi_total galaxies total , galaxy totally , galaxies totals , galaxy total  
galaxi_intermedi galaxies intermediate , galaxy intermediate  
galaxi_promin galaxy prominent , galaxies prominent  
galaxi_appar galaxy apparent , galaxies apparently , galaxies apparent , galaxy apparently  
galaxi_larger galaxies larger , galaxy larger  
form_spiral form spiral , forms spiral , formed spiral  
found_center found centers , found center  
galact_halo galactic halo , galactic halos  
faint_galaxi faint galaxies , faint galaxy  
sbb_sbc sbb sbc  
galaxi_hubble' galaxies hubble's  
link_galaxi link galaxy , link galaxies , links galaxies , linked galaxy  
sb_sc sb sc  
format_occur formation occurring , formation occurs , formation occurred , formation occur , formation occuring  
main_sequenc main sequence  
origin_galaxi origin galaxies , original galaxies , originate galaxies , origins galaxy , origin galaxy  
immanuel_kant immanuel kant  
structur_spiral structure spiral , structures spiral , structure spirals , structured spiral , structures spirals  
star_long stars long  
emit_energi emit energy , emits energy  
thin_disk thin disk , thinned disk  
billion_sun billion suns , billions suns  
microwav_radiat microwave radiation  
galaxi_flatten galaxies flattened , galaxy flattens , galaxy flattened , galaxy flatten  
grace_galaxi grace galaxies  
amount_matter amount matter , amounts matter  
star_type stars type , star types , stars types  
occur_galaxi occur galaxies , occurred galaxy , occurs galaxies , occurring galaxies , occur galaxy  
year_larg years large  
energi_releas energy released , energy release  
type_sc type sc , types sc  
galaxi_approxim galaxies approximately , galaxy approximately  
save_grace saving grace  
young_blue young blue  
sba_sbb sba sbb  
light_need light need  
messier_31 messier 31  
need_save need saving  
format_rate formation rate , formation rates  
dear_god dear god  
galaxi_closer galaxies closer , galaxy closer  
star_follow star follow , stars follow  
redshift_galaxi redshift galaxy , redshift galaxies , redshifts galaxies , redshifted galaxies , redshifted galaxy  
year_univers years universe  
lost_galaxi lost galaxies , lost galaxy  
galaxi_distribut galaxy distribution , galaxies distributed , galaxies distribution  
galaxi_differ galaxies differ , galaxies difference , galaxies differs , galaxy difference , galaxy differences , galaxy differs , galaxies differently  
galaxi_core galaxy core , galaxies core , galaxies cores , galaxy cores  
time_mass times mass , time mass  
ngc_7331 ngc 7331  
make_star making stars , make star , make stars  
matter_distribut matter distribution , matter distributed  
galaxi_largest galaxies largest , galaxy largest  
peculiar_galaxi peculiar galaxies , peculiar galaxy  
million_galaxi million galaxies , millions galaxies  
main_type main types , main type  
distanc_galaxi distances galaxies , distance galaxy , distance galaxies , distances galaxy  
univers_imag universe imaged , universe image  
galaxi_rotat galaxies rotate , galaxy rotation , galaxy rotates , galaxy rotating , galaxies rotating , galaxies rotation , galaxy rotate  
disk_central disk central , disks central  
galaxi_orbit galaxies orbit , galaxies orbiting , galaxies orbits , galaxy orbited , galaxies orbitting , galaxy orbit , galaxy orbits , galaxy orbiting  
imag_spiral image spiral , imaging spiral , images spiral  
galaxi_affect galaxies affect , galaxy affected , galaxy affect  
galaxi_continu galaxy continue , galaxies continue , galaxies continued , galaxies continues , galaxies continuing  
galaxi_flat galaxies flat , galaxy flat  
galaxi_massiv galaxies massive , galaxy massive  
galaxi_case galaxies case , galaxies cases , galaxy cases , galaxy case  
larger_structur larger structures  
spiral_spiral spiral spiral , spirals spiral , spirals spirals  
galaxi_span galaxies span , galaxy span , galaxies spans , galaxy spanning , galaxies spanning  
galaxi_character galaxies characterized , galaxy characterized  
year_distanc years distance , year distance , years distances  
galaxi_object galaxies objects , galaxy objects , galaxies object  
sai_blind say blinding  
radio_galaxi radio galaxies , radio galaxy  
tidal_interact tidal interactions , tidal interaction , tidally interacting , tidally interacted  
survei_found survey found , surveyed found  
galaxi_time galaxy time , galaxies time , galaxies times , galaxy times  
hole_center hole center , holes centers , holes center , hole centers  
x-rai_emiss x-ray emission , x-ray emissions  
understand_galaxi understanding galaxy , understand galaxies , understand galaxy  
blind_light blinding light  
center_virgo center virgo , centered virgo  
host_galaxi host galaxy , host galaxies , host galaxie  
galaxi_distanc galaxy distance , galaxies distance , galaxies distances , galaxy distances  
core_spiral core spiral  
hoag'_object hoag's object  
direct_constel direction constellation , direction constellations , directions constellations  
view_galaxi view galaxy , view galaxies , viewed galaxies , viewing galaxies , viewing galaxy , viewed galaxy , views galaxies  
galaxi_show galaxies show , galaxy shows , galaxy show , galaxies showed , galaxies shows , galaxy showing , galaxy showed , galaxies showing  
rr_lyra rr lyrae , rr lyraes  
earth_galaxi earth galaxy , earth galaxies  
epoch_galaxi epoch galaxies , epoch galaxy  
small_compar small compared  
poorli_understood poorly understood  
type_sb type sb , types sb  
univers_dark universe dark  
galact_disk galactic disk , galactic disks  
close_galaxi close galaxy , close galaxies , closely galaxies  
larg_central large central  
orbit_common orbiting common , orbit common , orbits common  
messier_51 messier 51  
show_galaxi show galaxies , shows galaxies , showed galaxies , show galaxy , showing galaxy , shows galaxy  
ellipt_dwarf elliptical dwarf , ellipticals dwarfs , elliptic dwarfs  
galact_core galactic core , galactic cores  
galaxi_starburst galaxy starburst , galaxies starburst , galaxy starbursts , galaxies starbursts  
star_cepheid star cepheid , stars cepheids , stars cepheid  
ag_galaxi age galaxies , age galaxy  
galaxi_add galaxies adds  
plane_galaxi plane galaxy , plane galaxies  
tag_galaxi tag galaxies , tagged galaxies , tag galaxy  
dust_dark dust dark  
recession_veloc recessional velocity , recessional velocities  
bright_galaxi bright galaxies , bright galaxy , brightness galaxies , brightness galaxy  
galaxi_size galaxies size , galaxy size , galaxies sizes , galaxy sizes , galaxy sized  
gravit_attract gravitational attraction  
galaxi_made galaxies made , galaxy made  
star_ellipt stars elliptical , stars ellipticals , stars elliptic  
milki_spiral milky spiral , milky spirals  
e7 e7 , e7s  
e0 e0  
dust_cloud dust clouds , dust cloud  
curti curtis  
way' way's  
ellipsoid ellipsoidal , ellipsoid , ellipsoids , ellipsoidally , ellipsoidals  
km/ km/s  
vaucouleur vaucouleurs  
bright_central bright central  
arm_wind arms wind , arms winding  
galaxi_m81 galaxy m81 , galaxies m81  
type_sa type sa , types sa  
galaxi_evid galaxies evidence , galaxy evidently , galaxies evident , galaxy evidence  
galaxi_earth galaxy earth , galaxies earth  
cluster_milki clusters milky , cluster milky  
longer_wavelength longer wavelengths , longer wavelength  
galaxi_pass galaxies pass , galaxy passes , galaxy passing , galaxy passed , galaxy pass , galaxies passing  
case_galaxi case galaxies , cases galaxy , case galaxy , cases galaxies  
irr_ii irr ii  
group_group groups group , groups groups , group groups , group group , group grouping  
system_consist system consists , system consisting , systems consisting , system consisted  
star_birth star birth , star birthing  
univers_infinit universe infinite  
univers_evolv universe evolve , universe evolved , universes evolving , universe evolving  
3_million 3 million  
sun_dark sun dark , suns dark  
beauti_galaxi beautiful galaxies , beauty galaxy , beautiful galaxy  
hubbl_tune hubble tuning  
galaxi_10 galaxies 10 , galaxy 10  
galaxi_sky galaxies sky , galaxy sky  
look_galaxi look galaxies , look galaxy , looking galaxies , looked galaxies , looking galaxy  
abel abell  
sba sba  
word_galaxi word galaxy , word galaxies  
torn torn  
harlow harlow  
sbb sbb  
mean_galaxi meaning galaxies , mean galaxy , means galaxy , means galaxies , meaning galaxy , meanings galaxies  
cluster_call cluster called , clusters called , cluster call  
galaxi_life galaxies life , galaxy life  
hercul_you'v hercules you've  
swept_narrow swept narrow  
wound_arm wound arms  
galaxi_save galaxy save , galaxies save , galaxies saves  
ey_hope eye hope  
narrow_road narrow road  
cloud_form clouds formed , cloud formed , clouds form , cloud forms , cloud form  
galaxi_can't galaxy can't , galaxies can't  
hope_blink hope blink  
univers_hubbl universe hubble  
galaxi_s0 galaxies s0 , galaxy s0  
galaxi_inform galaxies information , galaxy information , galaxy informations  
smaller_dwarf smaller dwarf  
god_north god north  
call_dark called dark , call dark  
collaps_form collapse form , collapsed form , collapsing form  
you'v_sai you've say  
galaxi_question galaxies questions , galaxy questions , galaxies question , galaxy question  
distanc_center distance center , distances center , distances centers , distance centers  
cross_sun crossed sun  
closest_galaxi closest galaxies , closest galaxy  
galaxi_identifi galaxies identified , galaxy identified , galaxies identifiable , galaxies identifying , galaxies identify , galaxy identifiable  
cloud_visibl clouds visible , cloud visible  
radiat_energi radiate energy , radiates energy , radiation energy , radiating energy  
dark_dear dark dear  
typic_galaxi typical galaxy , typical galaxies  
terribl_lost terribly lost , terrible lost  
galaxi_suggest galaxies suggest , galaxy suggests , galaxy suggest , galaxies suggesting , galaxies suggests  
road_hercul road hercules  
appar_bright apparent brightness , apparent brightnesses  
year_star years stars , year stars  
larg_cloud large clouds , large cloud  
galaxi_light galaxies light , galaxy light  
time_light time light , times light  
constel_ursa constellation ursa  
edg_galaxi edge galaxy , edges galaxies , edges galaxy , edge galaxies  
univers_billion universe billions , universe billion , universes billions  
produc_star produce stars , produced star , producing stars , produced stars  
foreground_star foreground stars , foreground star  
star_region stars regions , stars region  
galaxi_edge-on galaxy edge-on , galaxies edge-on  
blink_swept blink swept  
god_terribl god terribly , god terrible  
galaxi_repres galaxies represent , galaxies represented , galaxies represents , galaxy represented , galaxy represent  
count_number counting number , count number  
bulg_star bulge stars , bulge star  
star_blue stars blue  
galaxi_stretch galaxies stretched , galaxies stretching , galaxy stretches , galaxy stretching , galaxies stretches , galaxies stretch  
compar_galaxi compare galaxies , compared galaxy , compared galaxies , comparable galaxies , comparative galaxy , comparing galaxy  
year_distant years distant , year distant  
close_center close center , close centers  
kant kant  
hubble'_law hubble's law  
island_univers island universes , island universe  
import_role important role  
galaxi_satellit galaxies satellites , galaxy satellite , galaxy satellites , galaxies satellite  
shape_irregular shape irregular , shapes irregular  
milki_small milky small  
form_giant forms giant , formed giant , form giant  
call_nebula called nebulae , called nebula , call nebulae  
ga_disk gas disk , gas disks  
thousand_time thousands times , thousand times  
resolv_star resolved stars , resolve stars , resolved star  
galaxi_faster galaxy faster , galaxies faster  
provid_evid provided evidence  
curv_arm curving arms , curved arms  
galleri_galaxi gallery galaxies , gallery galaxy  
great_andromeda great andromeda  
distort_shape distort shape , distort shapes , distortions shapes , distortions shape , distorted shapes  
small_number small number , small numbers  
hubble'_constant hubble's constant  
galaxi_follow galaxy follow , galaxies follow  
galaxi_provid galaxies provide , galaxies provided , galaxy provide , galaxy provided , galaxy providing  
cluster_largest clusters largest , cluster largest  
strip_ga strip gas , stripping gas , stripped gas  
pictur_small picture small  
estim_mass estimated mass , estimating mass , estimate masses , estimate mass  
massiv_system massive systems , massive system  
carl_seyfert carl seyfert  
trillion_solar trillion solar  
bright_nuclei bright nuclei  
appar_shape apparent shape , apparent shapes  
galaxi_hot galaxies hot , galaxy hot  
star_year stars year , stars years , star years  
galaxi_emiss galaxy emission , galaxies emission  
thing_bright things bright , thing bright  
estim_ag estimated age , estimate aged , estimates age , estimating age , estimate age  
cloud_hydrogen clouds hydrogen , cloud hydrogen  
hundr_galaxi hundreds galaxies , hundred galaxies  
radio_lobe radio lobes  
constel_sagittariu constellation sagittarius , constellations sagittarius  
constel_andromeda constellation andromeda  
content_galaxi content galaxies , content galaxy , contents galaxies , content galaxie  
univers_remain universe remain , universe remains  
mass_milki mass milky  
galaxi_develop galaxies develop , galaxies developed , galaxy developed  
poorli_defin poorly defined  
dark_dust dark dust  
planet_hubbl planet hubbl  
500_million 500 million  
star_central stars central  
sequenc_galaxi sequence galaxies , sequence galaxy  
telescop_abl telescope able , telescopes able  
ngc_4676 ngc 4676  
collis_occur collisions occur  
point_sourc point sources , point source  
model_earli models early , model early  
open_question open question  
characterist_galaxi characteristics galaxies , characteristic galaxies  
light-year_distanc light-year distance , light-years distance  
close_resembl closely resembles , closely resemble  
speed_star speeds stars , speed stars , speeding star  
30_billion 30 billion  
s0 s0 , s0s  
red-shift red-shifted , red-shift , red-shifts  
hii_region hii regions , hii region  
isotrop isotropic , isotropically  
halo_galaxi halo galaxy , halos galaxies  
intergalact_space intergalactic space  
small_group small groups , small group  
found_galaxi found galaxy , found galaxies  
radio_sourc radio sources , radio source  
astronomi_galaxi astronomy galaxies , astronomy galaxy  
time_massiv times massive  
megaparsec megaparsecs , megaparsec  
visibl_univers visible universe  
ten_time ten times , tens times  
locat_galaxi located galaxy , location galaxy , locate galaxies , locations galaxies , locations galaxy , location galaxies , located galaxies  
galaxi_click galaxy click , galaxies click  
hoag' hoag's  
lmc lmc  
shaplei shapley  
forev forever , forevers  
tear tear , tears , tearing  
ring_galaxi ring galaxy , ring galaxies , rings galaxies , ringing galaxy , ringed galaxies  
imag_hubbl image hubble , images hubble , imaged hubble  
star_war star wars , star war