His dream is to do a space walk.

He is passionate about exploring his own innerverse.

His dream is to pilot a spaceship.

The problem of space debris could potentially have a significant impact on future space development.

The study of cosmic rays may hold the key to unraveling the mysteries of the universe.

He proposed a new theory about cosmology.

He is interested in the design of spacecraft.

He is excited about living in outer space.

He walked on the moon wearing a space suit.

I am interested in space exploration.