Week 4-Do I believe in aliens?

I believe there is other life on other planets because we can't possibly be the only life out of 9 planets in our solar system. Only a few years ago there was a rover on Mars, the rover found some water that led scientists to believe that aliens could've lived on the planet. All over the world people claim to have seen U.F.O.s. That many people couldn't possibly all be lying. They have pictures of the U.F.O.s, most of them are blurry and hazy but a few of them are clear enough to see what was supposed to be the U.F.O. Right now there could be life forms on other planets wondering the same thing as us, if they were the only living things in the universe.