posted on Aug, 11 2011 @ 01:31 PM
The answer to the question is no.
Could we survive one? Thats a different question, that would depend on what they were here for and whether we could survive them taking it.
Technically any situation where we maintained a minimum viable breeding population (about 10,000) would be survival. Its a big enough planet that
10,000 could easily escape into the scenery, although that scenario bodes poorly for most of us.
To be honest though. I cant see any real reason to come here other than for us ourselves. Lots of empty rocks with similar mineral content and lots of
frozen water out there. If aliens show up its more likely a 'press gang' than an extermination squad :-)