My dream is to become an astronaut.

Astrobiology is a very interesting field of study.

Cosmic background radiation is considered evidence of the Big Bang.

He is majoring in aerospace engineering.

He is good at solving technical problems.

He always has an optimistic attitude.

His music is very avant-garde, and some people might not understand it.

He is facing economic problems.

This word is etymologically derived from Latin.

Looking at this kanji graphically etymologically, its shape represents its meaning.