Among the types of galaxies listed, irregular galaxies, such as "Calliope," are generally considered to be the youngest. They are often in the process of forming new stars and have not yet settled into a distinct shape like spiral or elliptical galaxies. Therefore, the youngest galaxy among the four is likely Calliope.
Robert is looking at four galaxies:
an irregular galaxy the he calls “Calliope”;
a spiral galaxy that he calls “Medea”;
an elliptical galaxy that he calls “Minerva”;
and a lenticular galaxy that he calls “Ariadne”;
Which of these four is the youngest?
(1 point)
Responses
Medea
Medea
Ariadne
Ariadne
Minerva
Minerva
Calliope
1 answer