He is majoring in astronautics.

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

He walked on the moon wearing a space suit.

The time has come to start a new challenge.

There will be an important announcement tomorrow.

I will announce the new product tomorrow.

He is interested in space exploration.

We are developing a robot to explore new planets.

Cosmic background radiation is considered evidence of the Big Bang.

My dream is to become an astronaut.