Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427, in the constellation of Virgo. It is not certain whether the galaxies are going to eventually co...
A faint bubble shape supernova remnant (a.k.a SNR G116.9+02) in Cassiopeia ~7500-10000 years old and ~9500 ly away. A mixed-morphology supernova remnant with its shell visible in both o...