Life is indeed very tenacious. I would not be surprised to find bacterial life on Mars or one of the near-Earth asteroids.
But the question of where life, and more importantly the information that makes life possible came from is another question entirely. It has not been answered by the old standbys (Miller-Urey experiment), and the origin of life conventions, at least as of a few years ago, had no new theories; indeed, they are all moving toward panspermia, which just moves the question of origins back one planet.
You bet....The big questions there is, where did the water go? What caused the changes?
The possibilities for life outside earth are endless.
Nope, would not subscribe to that.