... In visual appearance, M74 is a nearly perfect face-on spiral galaxy, about 30 million light-years away toward the constellation Pisces. ... The strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image. ... Composite Crab . ... xxxre linkxxx) The Crab Pulsar, a city-sized, magnetized neutron star spinning 30 times a second, lies at the center of this composite image of the inner region of the well-known Crab Nebula. ...