galaxies
Classifying Galaxies (1 of 25)
The Hubble Law (2 of 25)
Shape of Elliptical Galaxies (3 of 25)
Properties of Galaxies (4 of 25)
Gas Forms Galaxies (5 of 25)
Young Galaxies (6 of 25)
The Milky Way Galaxy (7 of 25)
The Tuning-Fork Diagram (8 of 25)
A Schematic Rotation Curve for a Galaxy (9 of 25)
A Luminous Arc (10 of 25)
A Double Quasar Image (11 of 25)
Velocity of Expansion as a Function of Distance (12 of 25)
A Cepheid Variable in a Distant Galaxy (13 of 25)
Two Galaxies Colliding (14 of 25)
Galaxies in the Young Universe (15 of 25)
Galaxy Merger (16 of 25)
Cepheid Variable Star in M100 (17 of 25)
Spiral Galaxy M100 (18 of 25)
Three Galaxies Immersed in Hot Gas (19 of 25)
NGC 4881, Coma Cluster (20 of 25)
Galaxy Recession and Hubble's Law (21 of 25)
Galactic Building Blocks (22 of 25)
Galaxy Head-On Collision (23 of 25)
HST’s Deepest View of the Universe (24 of 25)
Galaxies in an Aging Universe (25 of 25)
