life

What if the Earth's star was two stars? Like, the kind that orbits each other. If there were that in the middle of the solar system, what would conditions on Earth be like? Would life as we know it be able to exist?

Sometimes I wonder we are alone in this cosmos? is there a place where universe ended or what is after that place because if we see as human imagination a place can't ended fully. for eg. if we ponder earth is a universe so there must be beyond it if not then nothingness is what not discovered...

why did life end on mars? when would it re-begin ...