Stroboscopic view of the Crab nebula Pulsar	Optical view of the Vela Supernova remnant	Vela Supernova remnant in X-Ray	Detail of Vela Supernova remnant
FIG. e-24	FIG. e-25	FIG. e-26	FIG. e-27
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution
Vela Pulsar	The CAS-A Supernova remnant	CAS-A Supernova remnant in radio, optical, and X-Rays	Artist's conception of a Black Hole
FIG. e-28	FIG. e-29	FIG. e-30	FIG. e-31
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution
X-Ray burst from Terzan 2	Burster at center of Globular Cluster	Optical view of Andromeda (M31)	X-Ray view of Andromeda (M31)
FIG. e-32	FIG. e-33	FIG. e-34	FIG. e-35
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution
X-Ray source positions superimposed on optical view of M31	Close-up X-Ray view of central region of M31	Andromeda (M31) as seen over time	Centaurus A-optical and radio views
FIG. e-36	FIG. e-37	FIG. e-38	FIG. e-39
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution
Centaurus A in X-Rays	Cluster of galaxies in Virgo	Virgo cluster member galaxies M84 and M86	X-Ray view of the central region Virgo cluster
FIG. e-40	FIG. e-41	FIG. e-42	FIG. e-43
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution
Optical view of the Galxy M87 in Virgo	X-Ray view of M87	X-Ray view of the cluster of galaxies A85	Optical A85 with X-Ray contours
FIG. e-44	FIG. e-45	FIG. e-46	FIG. e-47
by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution	by: Smithsonian Institution