A cure for Cancer.
pop cycles that don't melt in the summer
Proof that life exists on another planet.
Yeah.I am convinced it must or Earth is hell of a fluke.
I agree. When you consider the sheer size of the universe, and the countless number of galaxies and stars and planets and moons etc...it seems impossible that only Earth supports life.
Microbial life is probably fairly common. As life becomes more complex it requires more hospitable and specialized conditions to survive and evolve so it is probably more rare. It's quite possible that intelligent life, at least as smart as a human being, is very rare. Unfortunately that would also mean the distance between habitable planets is incredibly big and that makes any form of contact incredibly difficult if not impossible. I doubt there will be a close encounter in my lifetime.
Walmart on the moon.