Spiral galaxy M106, Hubble image
Spiral galaxy NGC 2403, optical image
Spiral galaxy NGC 3521, optical image
Spiral galaxy NGC 7331, optical image
Spiral galaxy NGC 2841, composite image
Andromeda Galaxy, composite image
Spiral galaxy M81, composite image
Southern Pinwheel Galaxy, Hubble image
Southern Pinwheel Galaxy, composite image
Pinwheel Galaxy (M101), Hubble image
Antennae colliding galaxies
Spiral galaxy M106, composite image
Spiral galaxy NGC 6949, optical image
Pinwheel Galaxy, composite image
Stephan's Quintet, composite image
D100 spiral galaxy with a tail of gas
Ring Nebula M57, Hubble image
Sculptor Galaxy, composite image
Sculptor Galaxy (NGC 253), Hubble image
Spiral galaxy NGC 891, optical image
Triangulum Galaxy (M33), optical image
Dumbbell Nebula M27, Hubble image
Trifid Nebula M20, Hubble image
Spiral galaxy NGC 2683
Pinwheel Galaxy, M101
Whirlpool galaxy
Whirlpool galaxy (M51), composite image
Messier 63 Sunflower galaxy, Hubble image
Spiral galaxy NGC 1232, optical image
Meathook Galaxy, composite image
Seagull Nebula, composite image
Messier 106 spiral galaxy, Hubble image
Dwarf spiral galaxy NGC 6503
NGC 1333 reflection nebula
Pinwheel Galaxy, HST image
Spiral galaxy NGC 1073, HST image
Spiral galaxy NGC 922, HST image
Sombrero galaxy (M104), HST image
Interacting spiral galaxy UGC 8335
Messier 77 spiral galaxy, Hubble image
Messier 100 spiral galaxy, Hubble image
Spiral galaxy, Hubble image
Galaxy NGC 5866, Hubble image
Active galaxy Markarian 817, HST image
Whirlpool Galaxy, composite radio image
Spiral galaxy Messier 106 in Canes Venatici
Galaxy SXDF-NB1006-2, illustration
Southern Pinwheel Galaxy, M83
Spiral galaxy M74
Spiral galaxy NGC3949
Distant galaxy HUDF-JD2, HST-SST image
Spiral galaxy NGC 2683, Hubble image
Spiral galaxy NGC 3521, Hubble image
Messier 96 spiral galaxy, Hubble image
Barred spiral galaxy, Hubble image
Colliding galaxies, Hubble image
Pandora's cluster, composite image
Musketball galaxy cluster, composite
Spiral galaxy NGC 2841, infrared image
Triangulum galaxy (M33)
Galaxies M81 and M82, ultraviolet image
Galaxy pair Arp 116, HST image
Spiral galaxy NGC 6872, composite image
Messier 85 galaxy, Hubble image
Centaurus A radio galaxy, composite image
Supernova remnant E0102-72.3, optical image
Supernova remnant E0102-72.3, composite image
Neutron star in supernova remnant E0102-72.3
Spiral galaxy NGC 4725
Spiral galaxy NGC 3370
Spiral galaxy M101
Stellar stream, HST image
Spiral galaxy NGC 300
Halo stars in Andromeda Galaxy
Quasar Markarian 205
Andromeda galaxy, Hubble image
Spiral galaxy NGC 2276, HST image
Spiral galaxy, Hubble Space Telescope image
NGC 6872 colliding galaxies, composite
Interacting galaxies in HCG 90, HST image
Spiral galaxy ESO 137-001, composite
Dwarf galaxy NGC 4449, HST image
Irregular galaxy NGC 4449, Hubble image
Andromeda galaxy (M31), infrared image
Spiral galaxy M74, SST infrared image
Arp 82 colliding galaxies, infrared image
Spiral galaxy IC 342, NuSTAR X-ray image
Galaxy NGC 4945, optical image
Fireworks Galaxy, optical image
M78 reflection nebula
Barred spiral galaxy NGC 2903
Lenticular galaxy IC 335, Hubble image
Lenticular galaxy, Hubble image
Galaxy M106
NGC 1850 star cluster, composite image
Spiral galaxy NGC 1566, infrared image
Spiral galaxy NGC 2976, infrared image
Andromeda Galaxy, infrared image
IC 342 spiral galaxy, infrared image
Whirlpool Galaxy, 19th century
Sunflower galaxy (M63)
Whirlpool galaxy (M51)
Whirlpool Galaxy
Abell 2744 galaxy cluster, composite image
Dwarf galaxy Holmberg IX
NGC 346 open cluster and nebula
Abell 1689 galaxy cluster, HST image
Antennae galaxies, composite image
Colliding galaxy NGC 6240
Galaxy cluster MACS J0717
Spiral galaxy NGC 2397
Active galaxy NGC 1275, HST image
Overlapping galaxies, HST image
Starfield, SWEEPS image
Sagittarius Dwarf Irregular Galaxy
Spiral galaxy NGC 5746, X-ray composite
Elliptical galaxy NGC 1132
Ring galaxy AM 0644-741
Elliptical galaxy NGC 1316, HST image
Colliding galaxies, infrared composite
Antennae galaxies, HST image
Interacting galaxies NGC 3690 and IC 694
Interacting galaxies NGC 5257 and 5258
Interacting galaxy NGC 5331
Interacting galaxy NGC 6670
Interacting galaxies 3C 321, visible
Interacting galaxies 3C 321, ultraviolet
Starburst galaxy NGC 1313
Cigar galaxy (M82), composite image
Galaxy cluster Abell S0740
Antennae colliding galaxies, Hubble image
Young galaxy lensed by cluster Abell 383
Messier 89 elliptical galaxy, Hubble image
Messier 49 elliptical galaxy, Hubble image
Galaxy ESO 162-17, Hubble image
Spiral galaxy
Spiral galaxy NGC 4013
Spiral galaxy NGC 1512
Spiral galaxy NGC 4603
Spiral galaxy NGC 1448, Hubble image
Head-on collision between two galaxies, HST image
M51 Whirlpool Galaxy, optical image
Galaxies interacting, Hubble image
NGC 7714 spiral galaxy, Hubble image
Arp 116 galaxy pair, Hubble image
Spiral galaxy NGC 300, infrared image
Spiral galaxy NGC 4244
Galactic gravitational lensing, ALMA-HST image
Spindle galaxy (NGC 5866)
Andromeda Galaxy
Spiral galaxy NGC 3627, composite image
Messier 106, composite image
Spiral galaxy NGC 1365, HAWK-I image
Spiral galaxy NGC 1637, VLT image
M106 galaxy, composite image
NGC 4921 spiral galaxy, Hubble image
Carina Nebula, composite image
Tarantula Nebula, composite image
M100 spiral galaxy, Hubble image
Galaxies M81 and M82
Southern Pinwheel Galaxy, infrared image
Open star cluster NGC 6791
Eagle Nebula's Pillars of Creation
Monkey Head Nebula, HST image
Globular cluster M15, HST image
M9 globular cluster, HST image
Planetary nebula NGC 5198, HST image
Carina Nebula features, HST image
Open star cluster NGC 3603, HST image
Planetary nebula NGC 2818, HST image
Starbirth region NGC 604, X-ray image
Starbith region in nebula NGC 3603
Core of globular cluster 47 Tucanae
Core of Omega Centauri globular cluster
Binary star system in Pismis 24
Helix nebula, HST image
Planetary nebula, X-ray composite
Supernova 1987a remnant, optical/X-ray
N49 supernova remnant, Chandra image