Scientists have discovered the existence of beating stars that echoe sounds like that of hammers. They also found that these stars give a kind of waves that create holes in everything they come across, even on the earth. Thus, they gave these stars two names; the first is that of a cosmic hammer for its hammer sound-like and the second name is that of the piercing star. Allah says in the Holy Qur’an:   "By the heaven and  the knocker. And what will make you to k...