Did you know that Tesla founder Elon Musk is making plans to send human beings to Mars?
Really. He is. Right now! See?
Read this article.
I know it seems like science fiction--or at least something far down the road, considering how big a mess we've made of Earth itself. And clearly we are not going on a field trip to Mars next year. Even if he is successful (and that's a HUGE if), it's going to take a lot of time. But considering how far he's come with Space X, we should probably take Musk seriously.
Which leads us to Mars. This article invokes the
1967 Outer Space Treaty (which is apparently really cool) to claim that Musk's mission might not be ethical, or even legal. The United Nations has pledged to take measures so that we don't contaminate other planets with microbes. (Since human beings are walking bacteria factories, that makes a lot of sense to me.)
I still think it highly unlikely that Mars contains sentient life, or even animal life. We're not going to arrive and be greeted by Ylla. But we have found
evidence of running water on the planet. And we're pretty sure that s
ome Antarctic fungus could survive there. The presence of microbial life on Mars is looking...well, if not likely, then at least more and more possible.
"Don't mess up," you optimists say. "Just don't go around contaminating and killing things on Mars, and we'll be fine." But I'd like to remind you that we have a crummy track record, as colonizers, for keeping native populations alive. Remember those woodcuts from 17th century England? "Come to Jamestown! Fertile earth! Uninhabited land!"
Uninhabited! Sometimes we blunder through the places we explore and destroy people and animals and plants in truly accidental carelessness. And sometimes we are blind to the damage we cause, because this blindness suits our purposes. I'm not so sure we would recognize life on Mars, even if it were staring us in the face--at least, not at first.
So I want to ask you, because this is a question that comes up over and over in science fiction: What obligation do we have to the life of other planets? Is terraforming a "dead" planet okay? (How do we recognize a dead planet?) Is it all right to contaminate or replace microbes? Plants? Animals? People? Why, or why not?