He is deeply studying about Dyophysitism in Christianity.

This number is called Fuka-soku Fuka-soku-ten, and it's almost impossible to comprehend its magnitude.

Global warming is a big issue that affects all of us.

He is an expert in geophysics.

A terrestrial planet may have an environment similar to Earth.

He likes to take a walk in the park at dusk.

Biocentrism is a theory that everything in the universe exists focusing on life.

He is writing a thesis on abiogenesis.

He is writing a thesis on the octovocalic theory.

He is writing a thesis on monotheism.