Pros.
- Scientists need to collect information to understand universe.
- Space engineering has produced many useful discoveries (e.g. satellite communication).
- Exploration promotes healthy co-operation between nations (e.g. space station).
Cons.
- Huge amounts of money are spent with little result.
- Resources should be spent on urgent needs on Earth. (e.g. disease control).
- National space programmes are testing potential weapons (e.g. missiles).