I dream of traveling through the universe someday.

His theory is very interesting.

Uchuu-kun, have you finished your homework for today yet?

Earth science is an important field of study for unraveling the mysteries of nature.

I am an Earthling.

We are searching for extraterrestrial life.

The process of terraforming is part of transforming other planets into a habitable environment for humans.

There is a rumor of discord between them.

He is deeply studying about Dyophysitism in Christianity.

Reading this supplementary explanation will deepen your understanding.