He is an expert in experimental psychology.

Radio astronomy plays a very important role in understanding the universe.

Infrared astronomy provides a new perspective on understanding the universe.

He is an expert in geophysics.

He is an expert in human anatomy.

He is known as an expert in criminology.

Astrobiology is a very interesting field of study.

Abstract algebra is a branch of mathematics that studies algebraic structures.

He is an expert in paleontology.

He is an expert in paleoanthropology, conducting research on the origins of mankind.