Nearby and bright, spiral galaxies M65 (top) and M66
stand out in this
The pair are just 35 million light-years distant and around
100,000 light-years across, about the size of our own
spiral Milky Way.
While both exhibit prominent dust lanes sweeping along
their broad spiral arms,
M66 in particular is a striking
contrast in red and blue hues;
the telltale pinkish glow of hydrogen gas in
star forming regions and young
blue star clusters.
M65 and M66 make up two thirds of the well-known
of galaxies with
warps and tidal tails
that offer evidence of the group's past
The larger M66
has been host to four supernovae discovered since 1973.