Pros
Exploring the unknown
Developing technology
Testing and experimenting with unknown aspect in physics -
Creating new theories
Cons
Other issues are more important
Can be a waste of money if theories can be validated
There are dangers and risk that are unknown in space
Hope it helps
Because of ww2 not many people could afford cars so and any automotive were halted and the only people who were buying cars was the government
They used violence and intimidation to prevent federal officials from collecting tax