John loves outer space and things associated with it ( esp . rockets ) . Well , he has taken it to a new level . This morning , we were discussing how we lived in Rockville , not the other towns around us .
What may be the reason why space interests him ?
Pick the best answer from the following options:
- None of the above choices .
 - He is in alien .
 - He wants to be an astronaut .
 - He wants to learn about where Earth is headed .


He wants to be an astronaut .