He has a deep interest in astronomy.

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

Infrared astronomy provides a new perspective on understanding the universe.

In astronomy, it is believed that quasars exist in the center of very distant galaxies.

He likes to think deeply.

His existence enriches my life.

You can feel his presence.

He lives in a faraway country.

His house is far away, it takes an hour by bus.

I was amazed at his extraordinary talent.