That's because the cost does not justify the payout. Sure you could go and mine on Mars, but there is no guarantee you'll keep the land if you find anything. By setting up a rule that if you explore it, it's yours...you'd have companies rushing to plant their flag...not because they wish to explore, but to lay a claim of ownership on the area for the future.
As far as companies mining the entire planet, sure they could, but they'd be poachers. The 250 mile area claim would have legal rights of ownership backed by earth governments.
The rule would obviously need to add some extra provisions to drive innovation. I dunno, require colonies within 100 years, or trips every decade to show the flag etc.
There is a reason that pretty much every single explorer on earth was financially backed by either a company or a gov't grant.
As far as companies mining the entire planet, sure they could, but they'd be poachers. The 250 mile area claim would have legal rights of ownership backed by earth governments.
The rule would obviously need to add some extra provisions to drive innovation. I dunno, require colonies within 100 years, or trips every decade to show the flag etc.
There is a reason that pretty much every single explorer on earth was financially backed by either a company or a gov't grant.