The real question is...why would liveforms capable of interstellar travel deal with Earth?
If they want water? Go to Europia, the moon of Jupiter. Plenty there.
Want iron? Well, that's what Mars is made of...
What hydrogen? They're idiots.
If they want water? Go to Europia, the moon of Jupiter. Plenty there.
Want iron? Well, that's what Mars is made of...
What hydrogen? They're idiots.