I dream of traveling through the universe someday.

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

It is said that far infrared radiation has a good effect on the human body.

His explanation was impossible to understand.

He is world-famous as an astronomer.

He has astronomical knowledge.

The problem of space debris could potentially have a significant impact on future space development.

The study of cosmic rays may hold the key to unraveling the mysteries of the universe.

He proposed a new theory about cosmology.

He believes that aliens exist.