Saori is my best friend.

I specialize in pharmacology research.

Sometimes, irrational things happen in this world.

I'm just amazed at the absurdity of this world.

Katori is my best friend.

Cosmic background radiation is considered evidence of the Big Bang.

My dream is to become an astronaut.

Astrobiology is a very interesting field of study.

He is majoring in aerospace engineering.

The space probe discovered a new planet.