Arp 81: 100 Million Years Later From the NASA Astronomy Picture of the Day web site

NGC 6302: The Butterfly Nebula from Hubble	M27: The Dumbbell Nebula	M57: Rings Around the Ring Nebula	Ou4: A Giant Squid Nebula	The Hercules Cluster of Galaxies	Arp 81: 100 Million Years Later
Stephan's Quintet Plus One	The Antennae Galaxies in Collision	Spiral Galaxies in Collision	Seyfert's Sextet	Mercury in Accentuated Color	Colors of Mercury