Space, the worthless frontier

No.13937625 ViewReplyOriginalReport
Is there really any good reason to sink resources into going beyond Earth orbit? And don't tell me about velcro or Tang, money invested in any science will end up with spinoff results. The space industry isn't unique in coming up with side inventions and inferior to the defense industry in that regard.
So why bother with Mars or anything else when relatively little of value comes from it? Shouldn't we spend that money on more useful things like nuclear energy research?