Galaxies
Galaxy Merger Evolution Sequence
October 21, 1997 · NASA
More galaxies
Ground-Based Image of M87October 21, 1997
HST/WFPC2 image of colliding galaxies NGC 4038 and NGC 4039October 21, 1997
HST/WFPC2 image of galaxy NGC 3921October 21, 1997
HST/WFPC2 image of galaxy NGC 7252October 21, 1997Zoom into the AntennaeOctober 21, 1997 · video
Hypothetical Collision of the Milky Way with the Andromeda GalaxyOctober 21, 1997 · video
Computer Simulation: The Formation of the Antennae PairOctober 21, 1997 · video
Gamma Ray Burst GRB 970228 Appears To Originate Outside Our GalaxySeptember 16, 1997