Two very different
galaxies drift through space at the same time in this image taken by the Hubble
Space Telescope. The curious pair of galaxies Arp 116 is called. Arp 116 is
composed of a giant elliptical galaxy known as Messier 60 (or M60) and a much
smaller spiral galaxy, NGC 4647. The spiral galaxy NGC 4647 light blue is about
two-thirds of M60 in size and much lower mass - about the size of our galaxy,
the Milky Way.
