Chrollo Lucilfer (ã¯ã­ã­=ã«ã·ã«ãã«, Kuroro Rushirufuru) is the leader of the Phantom Troupe, an infamous gang of thieves with class A bounties.
Earth's moon probably formed during a cataclysmic impact between Earth and a Mars-size object that scientists call Theia. A study of meteorites suggests that this collision may have occurred 4.47 billion years ago, scientists say. NASA
While the answer to this question is uncertain, one theory suggests that after the initial impact not one, but two moons formed around the Earth. However, over time these two spheres started a slow migration toward each other until, eventually, they collided. The result was the single Moon that we all know today.