Why Space Exploration Is Worth the Cost
First rule of cost savings is to look for efficiencies where they are most likely and will have the most positive impact. Wiping out NASA and all its benefits, jobs, downstream impacts, etc saves you 16B and costs you far more in the long run. Now, and this is completely an unsupported statement, I would be willing to bet you could find a 1% efficiency in the social programs or defense budgets without trying very hard. Without even changing funding levels, that's easily enough to fund NASA at the very least.