Who needs evidence?

out of all the stars in the universe is ours any different? the sun is a star right, and there are billions of stars billions of unexplored space out there i wouldn't be surprised to find that there were other planets like ours with life, it's not THAT unlogical to think there are ufos we found new "planets" or rocks or whatever they're calling them within the last few years why couldn't a star like our star the sun be providing life to another planet we haven't found yet? Scientists don't know everything nobody does we don't even know everything there is to know about stuff that happends right here on earth let alone millions and billions of miles away.