>>829>you wont see it while driving around with a rover.exactly, so why would you see life considering the martian surface is a particularly fancy version of a vacuum?
>everything decays, even plastic.the amount of plastic we, or any other civilization, has put out is so large that any alien with a decent measuring tool could discover it. even in 5 billion years.
>sattelites also come crashing down at some point.nope. their orbits become irregular, but not all fall out of orbit. once you're past the atmosphere orbital decay isn't a problem even on large timescales.
>nature works in mysterious way. im sure it can come up with something.then why haven't we discovered the nutrients? or better yet, why haven't we discovered the process that discovers it?
>that rock at least looks like it can be something. it has potential.no. i wish that i could explain to you in detail why this is not the case, but you would derail into random bullshit.