This stunning image shows the well-defined arms of the grand design spiral galaxy Messier 99. This composite image shows Messier 99, a grand design spiral galaxy located 42 million light-years away in the constellation of Coma Berenices. Image credit: ESO / PHANGS. Messier 99 resides approximately 42 million light-years away in the constellation of Coma Berenices. This galaxy has an unusual, asymmetric shape with a displaced core and unequal spiral...