He believes that aliens exist.

He is reading a book about space flight.

In philosophy, we consider ourselves a part of the macrocosm.

He is majoring in astronautics.

The theory of the multiverse is particularly interesting in the field of physics.

He is an expert in astrophysics.

The one-eyed goblin was dancing in the forest.

Astrobiology is a very interesting field of study.

Cosmic background radiation is considered evidence of the Big Bang.

He is majoring in aerospace engineering.