As time goes on, man still has the same unanswered questions regarding the unknown phenomenon that's infected our planet. Without expectation, the unknown has appeared and disappeared without a clue as to what they are, who they are, and why they are here. We know there is an outer space beyond Earth which contains an endless mass of stars planets, asteroids, and moons. We call it the cosmos, which refers to everything in space including Earth. Is there anyone or anything out there besides us?