We could send a rover to Mars every two weeks if we just did what?

You may remember in June of this year that University of Tampa professor Ryan T. Cragun, along with his students Stephanie Yeager and Desmond Vega, found a way for the United States to raise an extra $71 billion in taxes.

How? By removing the tax exemptions given to religious organisations.

Why am I bringing this up now?

Because someone was kind enough to work out what $71 billion would buy is in Mars rovers and it's a handy fact to have to hand the next time someone starts questioning the need to fund space exploration.