Life on other planets is very likely possible because there are many planets just like earth in the universe. We have gotten some signals from outer space that might be intelligent life or a mysterious sound from a planet explosion or from something random. We have many movies showing that alien life could possibly be on planets. People have seen weird spacecraft sightings in many areas of the world. In many movies you see aliens with super like weapons. The closest planet to earth is the Kepler-186F. It is the most possible planet to sustain alien life. This planet is 490 light years away. It is orbiting a red dwarf Kepler-186. We won't be visiting this planet anytime soon. Scientists say that if the planet has water than there is a big chance that is could have any kind of life on it. There are so many reasons why life would be on other planets such as the universe being so big in size it is impossible for there not to be other life. We haven't even observed a quarter of the universe. Just recently scientists have discovered an alien megastructure around a star dimming its light. We don't know for sure this is the case but is very likely to be an alien structure. It could be orbiting the star for its energy or just to live close to their sun.