I disagree with you on the social services, but completely agree with you on much better funding for both private and government space programs. I would like to see voluntary taxes for programs like this. Give me the option to give money to these two programs and I would as long as the government was not allowed to spend it elsewhere.
The same thing for the national dept, though this one would require the passage of a law that prevented the government from spending more money than it took in except in times of war before I would be willing to pay into it.
Did you know that the United States takes in more than 2 Trillion dollars in revenue each year. http://www.taxpolicycenter.org/briefing-book/background/numbers/revenue.cfm
There is no reason we cannot live within our means, do extraordinary research and provide assistance to our fellow citizens that need it.