Star clusters
White Dwarf Population in Globular Cluster M4
August 28, 1995 · NASA · M4, NGC 6121
More Hubble images of M4, NGC 6121
Close Up of Ancient, White Dwarf Stars in the Milky Way GalaxyApril 21, 2009
Close Up of Ancient, White Dwarf Stars in the Milky Way GalaxyApril 24, 2007
Ancient Planet in a Globular Cluster Core (artist's impression)July 10, 2003
Globular Cluster M4 - HST/WFPC2 ImageJuly 10, 2003
Hubble Pinpoints White Dwarfs in Globular ClusterApril 24, 2002M4 Ground-Based (NOAO) ImageApril 24, 2002
Ancient, White Dwarf Stars in the Milky Way GalaxyApril 24, 2002
Close Up of Ancient, White Dwarf Stars in the Milky Way GalaxyApril 24, 2002