NGC 4216 is an intermediate spiral galaxy located not far from the center of the Virgo Cluster of galaxies, roughly 55 million light-years away. It was discovered by William Herschel on...
Amid the myriad stars toward the inner Milky Way lies a set of colorful nested shells comprising the planetary nebula IC 1295 in Scutum, which were ejected episodically late in the life...