of course other wise this song never would've existed:
There's a place on mars where the women smoke cigars and the men where bikinis and the children drink linguini every breath wewe take is enough to kill a snake and when the snake is dead wewe put dimoands in its head when the dimoands crack wewe put mustard down its back and when the mustard fades wewe call the king of spades and the king of spades says freeze!
On mars, i think scientists may have discovered certain bacterial lifeforms existing in the water there. They are not martians, but since we originated from such simple lifeforms that could only survive on water, those lifeforms could evolve into martians in a few million years. So yes, some planets in our solar systems are not completely incapable of harboring life. So Earth is not so special.