I think a lot of those concerns disappear once you leave Earth. What makes our planet precious is how uncommon it is. The universe is incredibly vast, yet we ha

I think a lot of those concerns disappear once you leave Earth. What makes our planet precious is how uncommon it is. The universe is incredibly vast, yet we have not observed life on any planet but our own. So to me whatever the cost is to a planet like Mars of putting life on its surface, that cost is well worth it (the planet certainly doesn’t mind). The only ones who might be offended by this idea are us Terrans.