He is a world-famous physicist.

The seismologist is studying earthquake prediction and disaster prevention.

The freight train passed through the station.

Kaya is my best friend.

He finished his work and went home at midnight.

He was working until late at night.

He is clearly a night owl, working late into the night and sleeping late into the morning.

An owlet moth is an insect that is active at night.

In Hinduism, Yama is considered the god who judges the souls of the dead.

Senya is my best friend.