Answer:
the formation and evolution of stars and galaxies
Explanation:
One of the topic an astronomer will most likely study is the formation and evolution of stars and galaxies.
Astronomers are scientists that studies the universe, its components and how it works.
- An environmental scientist is concerned with pollution on a local river.
- A civil engineer is specializes in designing structures that can withstand earthquake damage.
- A biologist will observe the movement of dolphins.
